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  • 2020, February


    Better Together: Evolving Social Process between Bystanders and First Responders is a Force Multiplier for Effective Emergency ResponseOpen Access

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    Bystanders are an integral part of an emergency scene. Their presence on site makes them the immediate potential responders, who can provide life-saving assistance as well as various rescue actions. Research has shown that bystanders are willing to and are capable of helping, especially (but not limited to) when a leader emerges, as the help is rooted in a collective action. In this article, we suggest a new framework for understanding the effectiveness of bystanders help, based on the evolving social process between bystanders and first responders. As we show, the transition from no help, at the very first moment right after the emergency has occurred, to an effective coordinated response where first responders and bystanders act together, goes through engagement of bystanders. Further, first responders should acknowledge the social organization of bystanders, utilize and leverage it in order to optimize their efforts. This framework has important insights for policy makers when managing emergency and disaster situations with limited resources.


    Bystanders; First responders; Mass casualty incident; Help; Emergency; Cardio-pulmonary resuscitation (CPR).

  • 2019, December

    original research

    Epidemiological Description of a Protracted Cholera Outbreak in Hagadera Refugee Camp and the Surrounding Host Community within Fafi Sub County and Garissa County in Kenya during March-September 2019Open Access

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    On 27th March 2019, the Hagadera Refugee Camp reported an outbreak of acute watery diarrhea. An investigation was initiated to confirm the causative organism and define the epidemiology of the outbreak to support evidence-based control measures.


    A suspected case was a resident of Hagadera Refugee Camp or the surrounding community with a sudden onset of acute watery diarrhea and vomiting between March 27 and September 16, 2019. A probable case was defined as a suspected case with a positive rapid test for Vibrio cholerae; a confirmed case was a probable case with a positive stool culture for V. cholerae. We conducted a systematic case finding by visiting health facilities and villages. We reviewed patient records to identify suspected cholera casepatients. We conducted a descriptive epidemiologic study, examining the distribution of the cases. We computed the attack rates by age, sex, and residence. The case fatality rate was calculated as the ratio of the total number of suspected cholera death to the total number of cholera case-patients. We conducted targeted interventions including spraying, handwashing demonstration, distribution of soaps health education and promotion.


    We identified 667 suspected cholera cases between March and September 2019 of these, 38% (253/667) had a positive rapid diagnostic test for V. cholerae; 6% (43) were negative and 56%(371) rapid diagnostic test (RDT) were not conducted. Out of the 94 rectal swabs for culture, 71% (64/94) were confirmed to be V. cholera O1 serotype Inaba. The epidemic curve exhibited a continuous common-source outbreak with several peaks. The mean age of the case-patients was 15-years (range: 0.2-70-years). Both males and female had an attack rate of 9/10000 respectively. The highest attack rate was in ≥30-years (14 per 10,000).


    This was a continuous common source cholera outbreak caused by V. cholerae 01 serotype Inaba. We recommended strengthening the surveillance system improving early detection and effective response.


    Cholera; Outbreak; Kenya; Garissa; Protracted; Hagadera; Epidemiological; Descriptive.


    RDT: Rapid diagnostic test; WHO: World Health Organization; CTC: Cholera Treatment Centre; AWD: Acute watery diarrhea; TCBS: Citrate bile salt sucrose; CFR: Case fatality rate; OCV: Oral cholera vaccine; IRC: International Rescue Committee; UNHCR: United Nations High Commissioner for Refugees.

  • 2019, August

    original research

    Ovine Network between Fatteners and Breeders in Middle Atlas of Morocco: Where to Act to Prevent the Spread of Epidemics?Open Access

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    This cartographic and analytical study, using the social network analysis method, aims to characterize sheep mobility from breeders producing lambs in the Middle Atlas Mountains to the fattening centers, passing through livestock markets in order to describe the exchange network, to identify the main mobility hubs and to secure the production of fattening lambs by improving the efficiency of the epidemiological surveillance system for “peste des petits ruminants” (PPR) in lambs producers of the Middle Atlas in Morocco.


    Descriptive cross-sectional study within the framework of active epidemiological surveillance. It was carried out at a regional level, for mapping the movements of sheep and to analyze the network of exchange relating to this species by the Social Network Analysis (SNA) method in the middle atlas massif and in the zone of sheep fatteners to guide epidemiological surveillance efforts. A total of 807 breeders producing lambs, sheep fatteners and traders were surveyed, including 54 fatteners in fattening workshops (sampling fraction of 48.6%), 150 breeders and traders in livestock markets of Middle Atlas and 603 producing lamb breeders of this massif (sampling fraction at the massif level of 6.64%).


    The study revealed a very strong commercial relationship between middle Atlas breeders and fattening zone breeders whose longrange outflows mainly converge towards urban consumption centers. The major strategic livestock markets of the middle Atlas proved to be key points in the articulation of the flows, as was the commune gathering the fatteners. Centrality indicators were used to identify the main trade hubs that contribute to the spread of diseases and to quantify their importance in the influence of sheep movement, while network cohesion parameters have shown that network is vulnerable to the spread of epidemics.


    The results of this survey revealed the main commercial hubs at the Middle Atlas level and at the level of the province of fatteners, which represent a great risk of spreading sheep diseases over long distances rather quickly in event of an epizootic, but also representing the ability to control the spread through the control of the movement of animals at their level.


    Ovine network; Epizotic of (Peste des Petits Ruminants); Mapping; Social network analysis; Hub; Betweenness; Degree; Strong component; Cutpoint.

About the Journal

Epidemiology – Open Journal (EPOJ) is an online open access end to end portal that encompasses all documentation related to Epidemiology. Epidemiology is the study of the distribution and markers related to states health-related states and events (including but not limited to diseases) and the application of said studies to control these diseases on a macro level. Openventio is dedicated to act as an open access portal to all epidemiology professionals who want a single source for descriptive studies and developments in this field.

Aims and Scope

Epidemiology – Open Journal is a peer-reviewed journal that aims to be a complete and reliable source of discoveries and publications in the form of original articles, review articles, case reports, and product launches that affect this field.

EPOJ covers a wide array of subjects as given below

  • Health related states and events
  • Epidemiology and infection
  • Health related events in specified populations
  • Brain sparing effect
  • Analytic epidemiology
  • Descriptive epidemiology
  • Clinical epidemiology
  • Applied epidemiology
  • Emerging infection

Openventio aims to encourage documentation among the ever growing medical community to ensure data gets recorded and passed on to new practitioners in the field of epidemiology.

Submissions for this Journal are accepted from all practitioners, students of and experts in the field to novices who are just starting to learn and understand Epidemiology.

The audience of EPOJ includes doctors, nurses, research assistants, local community practitioners, manufacturers, and students of various universities and general communities from different parts of the world.

The journal welcomes all types of articles such as original research, review, case-report, mini-review, editorial, short-communication, book review, opinion, commentary, letter to the editor, conference proceedings, technical report, errata, illustrations, etc.

We are open to receive comments or any corrections from any potential scientists to improve the quality of our journal.