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ORIGINAL ARTICLE
Year : 2020  |  Volume : 64  |  Issue : 3  |  Page : 242-247  

Public health risks threatening health of people participating in mass gatherings: A qualitative study


1 PhD Student, Department of Health in Disasters and Emergencies, International Campus, Shahid Sadoughi University of Medical Sciences, Kerman, Iran
2 Associate Professor, Department of Health in Disasters and Emergencies, School of Public Health, Shahid Sadoughi University of Medical Sciences, Kerman, Iran
3 Professor, Department of Health Services Management, Kerman University of Medical Sciences, Kerman, Iran
4 Professor, Department of Environmental Health Engineering, School of Public Health, Shahid Sadoughi University of Medical Sciences, Kerman, Iran
5 Associate Professor, Department of Physical Medicine and Rehabilitation, Shahid Sadoughi University of Medical Sciences, Kerman, Iran
6 Associate Professor, Department of Nursing and Midwifery, Shahid Sadoughi University of Medical Sciences, Kerman, Iran

Date of Submission17-Jul-2019
Date of Decision16-Sep-2019
Date of Acceptance21-Jul-2020
Date of Web Publication22-Sep-2020

Correspondence Address:
Abbasali Dehghani Tafti
Department of Health in Disasters and Emergencies, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd
Iran
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ijph.IJPH_305_19

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   Abstract 


Background: Mass gatherings (MGs) have made many problems for the health system and potentially threaten the health of those participated in these gatherings. MGs account for a range of public health risks including communicable diseases, waterborne diseases, water treatment, and outbreaks. Objectives: The present study aimed to identify public health risks threatening the health of people participating in MGs in Iran. Methods: A qualitative study was designed using a conventional qualitative content analysis approach. Participants were selected using a purposive sampling method among the managers and staff who have experiences in the field of health in MGs in Iran. Subjects were interviewed through individual in-depth interviews after obtaining informed consent. Semi-structured interviews were used to collect the data from December 2018 to February 2019. To analyze the data, the content of recorded interviews was written verbatim. Preliminary data were repeatedly and simultaneously retrieved to give a general understanding of them. Results: The main theme emerged from data analysis on 16 interviews was related to public health risks involving the following categories: food hygiene deficiencies, communicable diseases risks, defects in health supervision, and the risk of environmental contamination. Conclusion: It is of paramount importance to identify the risks threatening the health of people participating in MGs. In the present study, the main public health risks were detected.

Keywords: Health, mass gatheringss, public health, risk assessment, risks


How to cite this article:
Tavan A, Tafti AD, Nekoie-Moghadam M, Ehrampoush M, Nasab MR, Tavangar H. Public health risks threatening health of people participating in mass gatherings: A qualitative study. Indian J Public Health 2020;64:242-7

How to cite this URL:
Tavan A, Tafti AD, Nekoie-Moghadam M, Ehrampoush M, Nasab MR, Tavangar H. Public health risks threatening health of people participating in mass gatherings: A qualitative study. Indian J Public Health [serial online] 2020 [cited 2020 Oct 30];64:242-7. Available from: https://www.ijph.in/text.asp?2020/64/3/242/295790




   Introduction Top


Mass gatherings (MGs) are held for religious, social, cultural, political, and sport reasons, and they prone to health hazards and events.[1] According to the World Health Organization, a MG is a planned or unplanned event in which planning and responsible resources are under pressure at local, state, or national levels due to a large number of people.[2]

MGs have made many problems for the health system and potentially threaten the health of those participating in these gatherings.[3] MGs account for a range of public health risks including communicable diseases, waterborne diseases, and outbreaks.[4] For example, in the Olympic Games MG, millions of meals are prepared for athletes, staff, and spectators. This is a risk to the outbreak of foodborne diseases. Meanwhile, international travel for participating in MGs increases the risk of infectious diseases, which are not endemic.[3] In fact, the prevalence of infectious diseases in international MGs is a health threat for the whole world.[4]

Therefore, MG planners should pay particular attention to sudden health emergencies such as the incidence of diseases and pandemic disasters, which require planning and preparation and, ultimately, increased response capacity in the health sector.[5] Provision of services through health facilities is different from ordinary conditions since these services are provided temporarily.[6] Many of health risks related to MGs have been developed because of lack of risk management strategies.[7],[8] Prevention, diagnosis, and treatment of diseases will be achieved when health authorities are aware of threatening health risks.[9] To achieve risk reduction measures, in the first step, health risk factors and their aggravating conditions should be identified, then a comprehensive risk assessment should be accomplished.[7],[8],[9],[10],[11]

Furthermore, to gain better results in relation to the management of MGs, challenges, strategies, and lessons learned should be documented, studied, and evaluated.[12] In this regard, herein, a qualitative study was designed to identify health risks threatening the health of people participating in MGs in Iran.


   Materials and Methods Top


Study design

A qualitative study was conducted from December 2018 to February 2019 as a part of a larger research on explaining the health risks threatening the health of participants in MGs in Iran. The study was conducted using a conventional content analysis approach. In this approach, coding and categorizing are done directly from the raw data.[13] In this process, an inductive coding is used to extract the themes and categories from the data through exact texts and continuous comparisons by the researcher.[14]

Study population – Selection and data collection

The study population included those who had the necessary experience in the field of health of MGs in Iran. The study participants were selected using a purposive sampling method. Participants were selected among the managers and staff of the Emergency Departments of Medical Service Centers, Public Health Deputy of Medical Sciences Universities, and the Red Crescent Society, who had professional experience in the field of health of MGs. Finally, a total of 16 such participants were included and studied.

Data were collected by an in-depth interview. Interviews were conducted from December 2018 to February 2019. Initially, participants were explained about the purpose of the study, as well as conduction of the interview and the right of individuals to participate or withdraw from it at any stage of the research. Subjects were interviewed through individual in-depth interviews after obtaining informed consent. Semi-structured interviews were used to collect the data. Interviews were conducted by a member of the research team and then were shared with other members of the team to extract the themes, fix any potential problems, and provide better questions for subsequent interviews. All interviews were conducted face-to-face. In some cases, if there was any ambiguity, a phone call was made after the interview. Interviews were conducted at a place convenient for the participants. Each interview began with an open question to clarify the concept; follow-up questions were presented based on the information provided by the participants. Interviews lasted between 17 and 50 min (on average 30.3 min). The criterion for stopping sampling was data duplication or data saturation.

Analysis and presentation

To analyze the data, the content of recorded interviews was written word by word. Preliminary data were repeatedly and simultaneously retrieved by the study team members to give a general understanding of them. Then, they were analyzed by continuous comparison and inductive analysis. Semantic units of the data as sentences or paragraphs were determined from speeches and texts of the interviews; afterward, primary or open codes were extracted. Finally, subcategories, main categories, and themes were summarized. After the coding process, categorized codes and meanings derived from them were interpreted as the theme.[14] Following the addition of each interview, the analysis was repeated and codes and categories were modified. In this study, data validation was improved by integrating data and repeated overview using different strategies such as adequate involvement and interaction with the participants, diversity among the participants in terms of age, experience, and various occupations. To achieve confirmability, data review methods were used by the participants (member check), the results of which were reviewed by external observers (peer-check).

Ethical considerations

This study was approved by the Ethics Committee on Research at the School of Public Health, Shahid Sadoughi University of Medical Sciences, on July 10, 2017, with a reference number of IR. SSU. SPH. REC.1396.66. Principles of presenting objectives of the study to the participants, confidentiality of information, obtaining informed consent for conduction of the interview, and recording of the conversation and the right to withdraw from the research at any stage were followed in this study.


   Results Top


A total of 16 interviews were conducted with 16 participants. All the participants were male, with median age being 46.5 years (range: 36–52 years) and median years of work experience being 20 years (range: 15–30 years); 37.5% of the participants had a bachelor degree of education and the rest had above bachelor degree education.

Totally, 552 codes were produced without calculating the overlaps. For more accurate coding and facilitating the study process, code merge was performed; and eventually, 38 codes remained, which were placed in eight subcategories. Ultimately, four main thematic categories were obtained. Thematic categories were conceptualized as (1) food hygiene deficiencies, (2) risk of communicable diseases, (3) defects in health supervision, and (4) Environmental contamination. The main theme as public health risks was also conceptualized from these main categories. [Table 1] demonstrates the process of extraction of this theme from categories, subcategories, and codes, which is as follows:
Table 1: Themes, subthemes, and codes in relation to public health risks of mass gatherings as extracted from in-depth interviews

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Theme: Food hygiene deficiencies

Improper Water Treatment: Distribution of water between the participants is a crucial health issue. The following is an example of participants' quotations: “In a mass gathering, pumps are placed in the river, and this water is introduced into urban water supply system with a transient treatment. In our opinion, this water is inappropriate not only for drinking but also for bathing and washing the dishes and fruit” (p3).

Another participant mentioned, “In religious gatherings, health care monitoring is very difficult because many people are involved in supplying and distributing the water, juice, and tea, and therefore there are many sources of supply” (p2).

Food preparation from uncertain sources and lack of centralized cooking is an important issue in MGs. Food health monitoring is possible when food is prepared in a well-defined and hygienic location for the participants in MGs. Regarding an epidemic in a religious gathering, a participant said, “In an outbreak of diarrhea, 16 people were referred to the health facility; and it was found that the source of the disease was consuming a common votive food. Although, the place of gathering was clear to us, but we did not know where the food has been cooked and distributed” (p10).

“In case of the Arbaeen gathering, the pilgrims use votive foods from indigenous people, and they do not know who has made them, thus there are more risks, and it is more difficult to manage the situation” (p7).

Unhygienic Distribution of Food: Conditions for preparation of food may be completely hygienic and healthy, but poor distribution conditions cause health problems and hazards for the participants in MGs. “Usually, because of lack of washing facilities, disposable containeris used in gatherings, there are different types of container, each of whichhas been designed for a specific use, and on this basis health certification is achieved. But, people without any knowledge about this standard use them in unrelated and unhealthy cases” (p3).

Theme: Risk of communicable diseases

Infectious and communicable diseases are among the public health hazards that can lead to a catastrophic event in MGs. In the following, participants 'quotations were presented in this regard:

“Because in MGs different people come together in one place and their contact rate is very high, the outcomes of communicable diseases can be more pronounced such as respiratory diseases, and if they receive food on a common source, they may suffer from diarrhea and gastrointestinal problems” (P10).

Detection of illnesses is also inefficient during MGs. One of the participants stated, “In some gatherings such as Hajj and Arbaeen, there is a system for identifying cases of illness at the entrance to the country, which is not sufficient for complete checkup of the pilgrims. Pilgrims are asked for some symptoms and some of them are denied. This system is not efficient” (p4).

Insufficient Disease Monitoring Centers: One participant opined, “In some gatherings, monitoring system of diseases is present, and suspected cases are reported right after the detection, but this system is not sufficient for the gatherings where the population is scattered, and some cases of disease are not observed” (p3).

Theme: Defects in health supervision

MGs are indicators of multidisciplinary management of the events. Health is one of the most important sectors. Without coordination for the presence of the public health experts, MGs will threaten serious risks. The example quotation related to this issue is as follows:

Lack of compulsion to obtain health permissions before gathering: “A food business unit in the community should be licensed both from office of Public Places and Public Health administrations. But this is not the case for MGs, and only the license from public places office is enough, which is a problem in holding the MGs” (p8).

Weekend program for recalling the public health team: “In many gatherings which are in coordination with public health administration, we send the team immediately and we are ready at any hour, but some of gatherings hold spontaneously and there isn't recalling program for public health team” (p3).

MGs personals without individual health certification card: ” In circumstances other than gatherings, and in the places where we are allowed to interfere, we will not at all be allowed to license the individuals who do not have a certified health cardto prepare food for people, but in some gatherings, we have people who have not received any sanitary approvals. This is a risk for the population and participants” (p8).

MGs without certification from the department of health: “In MGs that have not been coordinated with the health sector, and we attend there spontaneously and through being informed from other sources, our authority is weak as they have not a public heath certification to be canceled. Any sanitary hint or notification would be suppressed because there is no leverage” (p3).

Theme: Environmental contamination

Improper collection and disposal of the waste: “Environmental health unit should be very active in MGs; they should pay attention to some conditions providing the context for transmission of diseases, for example, collection and disposal of the waste and sewage” (p1).

Disruption in resource balance due to the presence of unorganized participants and vendors: “In MGs, there are two groups, which disrupt health balance of the venue. One group includes those coming in unorganized way, because the official system does not feed on them, pollution of their waste is even greater. Other groups are vendors. They cause the pollution in the environment and passages” (p5).

Disproportionate number of sanitary toilets relative to the participants: “In the gathering of Hajj holding in a few days, when pilgrims are outside the city, health facilities are not proportional to the population, number of sanitary toilets is low, and they are crowded and dirty causing a decline in the level of environmental hygiene in the gathering”(p4).

Insufficient number of sanitary toilets in some paths with mobile population: “In mobile mass gathering like Arbaeen, in which the population is moving, there are not many hygienic toilets in some walking paths” (p3).


   Discussion Top


In this study, subcategories were obtained through integration of primary codes, and four main categories including food hygiene deficiencies, communicable disease risks, defects in health supervision, and the risk of environmental contamination were obtained from subcategories. Then, the main theme of the study as “public health risks” was extracted from these categories. There are many reports of foodborne disease outbreaks in MGs.[15] In international MGs, the outbreak of diseases occurs as a result of communicable diseases; these outbreaks have been more focused on gastrointestinal diseases. This suggests special attention to the health of the water and food. Furthermore, the outbreak of waterborne disease has occurred in MGs due to a lack of personal and public hygiene.[16] To reduce concerns about waterborne and foodborne diseases in gatherings, in addition to pay attention to hand hygiene, it is recommended to avoid receiving water and food from an unknown source (e.g., vendors). This recommendation also applies to ice consumption. Participants in the MG are also recommended to use packaged water to ensure the health of drinking water.[17] In MG of Hajj, the risk of waterborne diseases has been shown to be low due to provision of healthy water during the Hajj, but the use of ice from an unknown source has been reported to increase the risk of water pollution.[18] Previous studies stated that the use of water and food with an uncertain source is referred to purchases of food and ice from vendors; but in our study, it was demonstrated that, in addition to vendors, peoples- vow to provide the foods and drinks in religious ceremonies is one of these uncertain and high-risk sources. Furthermore, many studies suggested that vaccination programs can reduce the incidence of infectious diseases, especially in international gatherings.[10],[19],[20]

In MGs, human-to-human transmission of airborne diseases is facilitated due to high spatial population density. Most infectious diseases occurring in MGs are respiratory diseases and gastrointestinal infections. Meningitis outbreaks have also been reported in some cases.[21] Respiratory tract and ear, nose, and throat infections, influenza, pyogenic pneumonia, whooping cough, and tuberculosis are most commonly observed in the time of Hajj MG.[17] Regarding infectious diseases, febrile systemic diseases, malaria, diarrhea, and respiratory infections have been common in MGs.[22] This evidence is consistent with our study results; naturally, some of reported cases are different from those in our study, probably due to differences in the context of the studies.

Many studies have found that there should be a system for identification, reporting, and monitoring of diseases to detect incidence and prevalence of a disease and to address its outbreaks in MGs.[17],[23],[24],[25],[26],[27] The disease surveillance system can also be very helpful in identifying bioterrorism attacks.[25],[26] In addition to designing instructions for endemic and seasonal diseases, it is useful to have a preventive plan and disease monitoring system.[28] Traditional surveillance systems and rate of disease detection can be improved using novel systems such as Internet, mobile applications, and wireless networks.[29] Our findings revealed that, in Iranian MGs, disease surveillance systems are traditional and imperfect, highlighting the need for new decisions and modern technologies to promote them.

In many MGs, particularly those lasting more than 1 day, if proper health supervision is not carried out over food and water supplies, then the incidence of disease would be inevitable.[15] Microbial testing of the water used in MG should be performed at various locations on a daily program.[30] For instance, a team in Mina (a location in Hajj ceremony) carries out comprehensive monitoring on health of food preparation and distribution, this team greatly contributes in the prevention of diarrheal diseases.[31]

Findings of the above-mentioned studies have demonstrated that there is an increased risk of disease incidence and health problems in MGs without strict health supervision. Furthermore, herein, it can be concluded that there is a lack of coordination for presence of health observers in some MGs. This issue is considerable in raising health risks in MGs.

Providing a safe and healthy environment in MGs requires a multi-sector approach; host cities should increase their capacities such as food and water supply, waste management, physical safety, and health care beyond routine and everyday conditions.[32]

Improper management of public and environmental health in terms of food, water, waste, land and traffic threatens the health and well-being of participants and employees.[33] Considerations should be given to personal health hygiene such as a sufficient number of toilets and soap in MGs. Furthermore, consumables such as soap and sanitary towels should be quickly replaced if consumed.[30]

As reported in these papers, attention to the health of MG environments is effective in reducing health risks. Furthermore, in our study, unorganized individuals were mentioned as a disruptive factor in the balance of health facilities, consequently causing more pollution in the gathering environment. Involvement of vendors in MGs is another challenge, which was considered a public health threat. Many studies have reported presence of vendors as a risk factor for reducing the health of food and beverages.[11],[17],[34],[35] In addition, in our study, vendors were considered as a factor increasing environmental pollution in MGs.

In this study, in-depth interviews were conducted with professionals who had experiences in providing health services in this field. Certainly, more in-depth interviews with other people involved in this area including security forces and even the participants can yield more complete results. Furthermore, qualitative and quantitative researches with larger sample sizes and in other contexts should be conducted separately to determine more risks and themes threatening the health of people in MGs.


   Conclusion Top


Public health risks are one of the most important issues of MGs, as they will not only threaten the health of the MGs participants but also threaten the health of the community. The first step in managing health risks is identifying health risks. This study by designing a qualitative study using the experiences of managers and health professionals in Iran has explained the health risks of MGs. Health managers can use these results to reduce these risks and improve participants' safety in MGs.

Financial support and sponsorship

Nil.

Conflicts of interest

There are no conflicts of interest.



 
   References Top

1.
Aitsi-Selmi A, Murray V, Heymann D, McCloskey B, Azhar EI, Petersen E, et al. Reducing risks to health and wellbeing at mass gatherings: The role of the Sendai Framework for Disaster Risk Reduction. Int J Infect Dis 2016;47:101-4.  Back to cited text no. 1
    
2.
World Health Organization. Public Health for Mass Gatherings: Key Considerations; 2015.  Back to cited text no. 2
    
3.
Stergarchis A, Tsouros A. Mass gathering and public health–The experience of the Athens 2004 Olympic Games. Kopenhaga: WHO; 2007.  Back to cited text no. 3
    
4.
Memish ZA, Zumla A, Alhakeem RF, Assiri A, Turkestani A, Al Harby KD, et al. Hajj: Infectious disease surveillance and control. Lancet 2014;383:2073-82.  Back to cited text no. 4
    
5.
World Health Organization. Mass gatherings: implications and opportunities for global health security: The context of mass gatherings. Weekly Epidemiological Record 2011;86:428-35.  Back to cited text no. 5
    
6.
Balsari S, Greenough PG, Kazi D, Heerboth A, Dwivedi S, Leaning J. Public health aspects of the world's largest mass gathering: The 2013 Kumbh Mela in Allahabad, India. J Public Health Policy 2016;37:411-27.  Back to cited text no. 6
    
7.
Bolia NB. Risk Management Strategies to Avoid Stampede at Mass Gatherings; 2016.  Back to cited text no. 7
    
8.
Schwartz B, Nafziger S, Milsten A, Luk J, Yancey A 2nd. Mass gathering medical care: Resource document for the national association of EMS physicians position statement. Prehosp Emerg Care 2015;19:559-68.  Back to cited text no. 8
    
9.
Sridhar S, Gautret P, Brouqui P. A comprehensive review of the Kumbh Mela: Identifying risks for spread of infectious diseases. Clin Microbiol Infect 2015;21:128-33.  Back to cited text no. 9
    
10.
Al-Tawfiq JA, Memish ZA. Mass gathering medicine: 2014 Hajj and Umra preparation as a leading example. Int J Infect Dis 2014;27:26-31.  Back to cited text no. 10
    
11.
Thackway S, Churches T, Fizzell J, Muscatello D, Armstrong P. Should cities hosting mass gatherings invest in public health surveillance and planning? Reflections from a decade of mass gatherings in Sydney, Australia. BMC Public Health 2009;9:324.  Back to cited text no. 11
    
12.
David S, Roy N. Public health perspectives from the biggest human mass gathering on earth: Kumbh Mela, India. Int J Infect Dis 2016;47:42-5.  Back to cited text no. 12
    
13.
Zhang Y, Wildemuth B. Qualitative analysis of content. Applications of Social Research Questions in Information and Library. Portland, OR: Book News; 2009.  Back to cited text no. 13
    
14.
Graneheim UH, Lundman B. Qualitative content analysis in nursing research: Concepts, procedures and measures to achieve trustworthiness. Nurse Educ Today 2004;24:105-12.  Back to cited text no. 14
    
15.
Zieliński A. Evidence for excessive incidence of infectious diseases at mass gatherings with special reference to sporting events. Przegl Epidemiol 2009;63:343-51.  Back to cited text no. 15
    
16.
Gautret P, Steffen R. Communicable diseases as health risks at mass gatherings other than Hajj: What is the evidence? Int J Infect Dis 2016;47:46-52.  Back to cited text no. 16
    
17.
Salmon-Rousseau A, Piednoir E, Cattoir V, de La Blanchardière A. Hajj-associated infections. Med Mal Infect 2016;46:346-54.  Back to cited text no. 17
    
18.
Rafiq SM, Rashid H, Haworth E, Booy R. Hazards of hepatitis at the Hajj. Travel Med Infect Dis 2009;7:239-46.  Back to cited text no. 18
    
19.
Salmon-Rousseau A, Piednoir E, Cattoir V, de La Blanchardière A. Hajj-associated infections. Médecine et Maladies Infectieuses 2016;46:346-54.  Back to cited text no. 19
    
20.
Rashid H, Abdul Muttalif AR, Mohamed Dahlan ZB, Djauzi S, Iqbal Z, Karim HM, et al. The potential for pneumococcal vaccination in Hajj pilgrims: Expert opinion. Travel Med Infect Dis 2013;11:288-94.  Back to cited text no. 20
    
21.
Hoang VT, Gautret P. Infectious diseases and mass gatherings. Curr Infect Dis Rep 2018;20:44.  Back to cited text no. 21
    
22.
Sokhna C, Mboup BM, Sow PG, Camara G, Dieng M, Sylla M, et al. Communicable and non-communicable disease risks at the Grand Magal of Touba: The largest mass gathering in Senegal. Travel Med Infect Dis 2017;19:56-60.  Back to cited text no. 22
    
23.
Shujaa A, Alhamid S. Health response to Hajj mass gathering from emergency perspective, narrative review. Turk J Emerg Med 2015;15:172-6.  Back to cited text no. 23
    
24.
Shafi S, Dar O, Khan M, Khan M, Azhar EI, McCloskey B, et al. The annual Hajj pilgrimage—minimizing the risk of ill health in pilgrims from Europe and opportunity for driving the best prevention and health promotion guidelines. International journal of infectious diseases. 2016;47:79-82.  Back to cited text no. 24
    
25.
Paterson BJ, Durrheim DN. The remarkable adaptability of syndromic surveillance to meet public health needs. J Epidemiol Glob Health 2013;3:41-7.  Back to cited text no. 25
    
26.
Pavli A, Maltezou HC. Travelling to Greece for the summer 2011 Special Olympics. Travel Med Infect Dis 2011;9:135-41.  Back to cited text no. 26
    
27.
Parmar P, Thomas DR. Public Health and Mass Gathering Events: Assessing Need for Surveillance in Wales, UK. Online J Public Health Inform 2015;7:e153.  Back to cited text no. 27
    
28.
Gallego V, Berberian G, Lloveras S, Verbanaz S, Chaves TS, Orduna T, et al. The 2014 FIFA World Cup: Communicable disease risks and advice for visitors to Brazil--a review from the Latin American Society for Travel Medicine (SLAMVI). Travel Med Infect Dis 2014;12:208-18.  Back to cited text no. 28
    
29.
Nsoesie EO, Kluberg SA, Mekaru SR, Majumder MS, Khan K, Hay SI, et al. New digital technologies for the surveillance of infectious diseases at mass gathering events. Clin Microbiol Infect 2015;21:134-40.  Back to cited text no. 29
    
30.
Vortmann M, Balsari S, Holman SR, Greenough PG. Water, sanitation, and hygiene at the world's largest mass gathering. Curr Infect Dis Rep 2015;17:461.  Back to cited text no. 30
    
31.
Gautret P, Benkouiten S, Sridhar S, Al-Tawfiq JA, Memish ZA. Diarrhea at the hajj and umrah. Travel Med Infect Dis 2015;13:159-66.  Back to cited text no. 31
    
32.
Cariappa MP, Singh BP, Mahen A, Bansal AS. Kumbh Mela 2013: Healthcare for the millions. Med J Armed Forces India 2015;71:278-81.  Back to cited text no. 32
    
33.
Johansson A, Batty M, Hayashi K, Al Bar O, Marcozzi D, Memish ZA. Crowd and environmental management during mass gatherings. Lancet Infect Dis 2012;12:150-6.  Back to cited text no. 33
    
34.
Enock KE, Jacobs J. The Olympic and Paralympic Games 2012: Literature review of the logistical planning and operational challenges for public health. Public Health 2008;122:1229-38.  Back to cited text no. 34
    
35.
Ahmed QA, Arabi YM, Memish ZA. Health risks at the Hajj. Lancet 2006;367:1008-15.  Back to cited text no. 35
    



 
 
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