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Related Concept Videos

Cholera01:25

Cholera

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Cholera is an acute gastrointestinal disease caused by the Gram-negative bacterium Vibrio cholerae. It is transmitted primarily via the fecal-oral route through the ingestion of contaminated water or food.Vibrio cholerae is a motile, Gram-negative bacterium of the family Vibrionaceae, primarily associated with waterborne outbreaks in areas with inadequate sanitation. Although over 200 serogroups of V. cholerae exist, only O1 and O139 are responsible for epidemic cholera. The O1 serogroup,...
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Reservoir of Infection01:30

Reservoir of Infection

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Infectious diseases arise from intricate interactions between pathogens and their reservoirs. A reservoir of infection refers to the natural habitat where a pathogen lives, grows, and multiplies, serving as a continual source of infection. Reservoirs are broadly classified as either living or nonliving, and each plays a unique role in disease transmission, significantly influencing public health interventions and control strategies.Humans act as reservoirs for a wide array of pathogens,...
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Investigation of Disease Outbreaks01:23

Investigation of Disease Outbreaks

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Multistate foodborne outbreaks pose significant public health risks and require meticulous investigation to identify sources and implement control measures. The Centers for Disease Control and Prevention (CDC) utilizes a dynamic seven-step process for these investigations, integrating data from laboratories, interviews, and environmental assessments to protect public health.Outbreak Detection: The detection of multistate outbreaks typically begins with PulseNet, the CDC's national laboratory...
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Steps in Outbreak Investigation01:18

Steps in Outbreak Investigation

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In the ever-evolving field of public health, statistical analysis serves as a cornerstone for understanding and managing disease outbreaks. By leveraging various statistical tools, health professionals can predict potential outbreaks, analyze ongoing situations, and devise effective responses to mitigate impact. For that to happen, there are a few possible stages of the analysis:
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Principles of Disease Surveillance01:26

Principles of Disease Surveillance

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Disease surveillance is the systematic collection, analysis, and interpretation of health data essential to the planning, implementation, and evaluation of public health practice. This process integrates data dissemination to entities responsible for preventing and controlling disease, injury, and disability. Surveillance systems provide crucial information for action, helping public health authorities make informed decisions to manage and prevent outbreaks, ensure public safety, optimize...
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Responses to Drought and Flooding02:41

Responses to Drought and Flooding

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Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
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Related Experiment Video

Updated: Mar 26, 2026

Laboratory Techniques Used to Maintain and Differentiate Biotypes of Vibrio cholerae Clinical and Environmental Isolates
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Notes from the Field: Ongoing Cholera Outbreak - Kenya, 2014-2016.

Githuka George, Jacob Rotich, Hudson Kigen

    MMWR. Morbidity and Mortality Weekly Report
    |January 29, 2016
    PubMed
    Summary

    A cholera outbreak caused by toxigenic Vibrio cholerae O1 serotype Inaba occurred in Kenya. The ongoing epidemic has affected over 11,000 individuals across 22 counties since January 2015.

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    Area of Science:

    • Epidemiology
    • Infectious Diseases
    • Public Health

    Background:

    • Cholera outbreaks pose significant public health challenges, particularly in resource-limited settings.
    • Timely detection and response are crucial for controlling the spread of Vibrio cholerae infections.

    Observation:

    • A case of acute watery diarrhea caused by toxigenic Vibrio cholerae O1 serotype Inaba was identified in Nairobi, Kenya.
    • Review of surveillance data revealed preceding suspected cholera cases in Nairobi County.
    • An outbreak investigation was promptly initiated following the initial case identification.

    Findings:

    • The investigation defined suspected and confirmed cholera cases based on clinical presentation and laboratory confirmation.
    • By January 15, 2016, the ongoing outbreak had resulted in 11,033 reported suspected or confirmed cases.
    • The epidemic had spread to 22 out of Kenya's 47 counties.

    Implications:

    • This outbreak highlights the persistent threat of cholera in Kenya and the need for strengthened surveillance systems.
    • Effective public health interventions and rapid response mechanisms are essential to mitigate the impact of future cholera epidemics.
    • Continued monitoring and control efforts are necessary to manage the ongoing transmission of Vibrio cholerae.