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The MERS-CoV Dashboard provides a centralized visualization of confirmed human cases reported through the International Health Regulations (IHR) and WHO Disease Outbreak News (DON). Its purpose is to enhance situational awareness, support risk assessment, and inform public health response by presenting summary statistics and epidemiological trends in a clear and accessible format.

 

MERS, Cases

Key facts

  • Middle East respiratory syndrome (MERS) is a viral respiratory disease caused by MERS coronavirus (MERS-CoV).
  • 75% of new or emerging pathogens are of animal origin, including MERS-CoV which can be transmitted between dromedary camels and people; around 20% of all cases have reported contact with camels or their products.
  • Person-to-person transmission can lead to outbreaks in hospitals and households.
  • Hospitals and healthcare settings can act as amplifiers if infection prevention and control measures are not adequately implemented.
  • 36% of MERS cases reported to WHO have died, but this may be an overestimation of the true case fatality rate as surveillance systems may miss mild or asymptomatic MERS cases.
  • There is currently no specific treatment or vaccine licensed for MERS.
  • Over 2,600 laboratory-confirmed cases of human infection with MERS-CoV have been reported to WHO; the majority (over 90%) were reported from the Arabian Peninsula.
  • Most reported cases are men (around 69%) and the average age is 52.4 years; 37% of cases belong to the age group 60 years and older.

MERS Cases, Overview

    World

    Number of MERS cases reported to WHO (cumulative total)

    Cumulative number of reported cases globally since 2012 (as of the most recent data update)

    Note: Countries not included in the list have not reported data or have no information available.

    Number of MERS cases reported to WHO (cumulative total)

    Cumulative number of reported cases globally since 2012 (as of the most recent data update)
    Most recent data submission date: 20th April 2025
    Source: World Health Organization
    WHO Eastern Mediterranean region

    Number of MERS cases reported to WHO (cumulative total)

    Cumulative number of reported cases in EMRO since 2012 (as of the most recent data update)

    Note: WHO Eastern Mediterranean region countries not included in the list have not reported data or have no information available.

    Number of MERS cases reported to WHO (cumulative total)

    Cumulative number of reported cases in EMRO since 2012 (as of the most recent data update)
    Most recent data submission date: 20th April 2025
    Source: World Health Organization

    MERS Cases, Global Trends

    Number of MERS cases reported to WHO

    Cumulative number of reported cases globally since 2012 (as of the most recent data update)

    Number of MERS cases reported to WHO

    Cumulative number of reported cases globally since January 2020 (as of the most recent data update)

    Number of MERS cases reported to WHO

    Cumulative number of reported cases globally in last 90 days

    MERS Cases Globally, Aggregated groups

    Number of MERS cases reported to WHO (cumulative total)

    WHO Regions

    Note: This graph provides a regional breakdown of cases reported since March 2012. Where there is no regional data, countries have not reported or do not have information available.

    Number of MERS cases reported to WHO (cumulative total)

    World Bank Income Groups

    Note: This graph provides a world bank income group breakdown of cases reported since March 2012. Where there is no groupiung data, countries have not reported or do not have information available.

    MERS Cases, In Numbers

    Age and sex

    Cumulative number of reported cases globally since 2012 (as of the most recent data update)

    Age

    Cumulative number of reported cases globally since 2012 (as of the most recent data update)

    Sex

    Cumulative number of reported cases globally since 2012 (as of the most recent data update)

    Occupation

    Cumulative number of reported cases globally since 2012 (as of the most recent data update)

    Likely place of exposure, as determined by epidemiological investigation

    Cumulative number of reported cases globally since 2012 (as of the most recent data update)

    Exposed to camels and/or their products

    Cumulative number of reported cases globally since 2012 (as of the most recent data update)

    Symptomatic vs. Asymptomatic

    Cumulative number of reported cases globally since 2012 (as of the most recent data update)

    Admission to Hospital/Intensive Care Unit (ICU).

    Cumulative number of reported cases globally since 2012 (as of the most recent data update)

    Confirmed case, by category

    Cumulative number of reported cases globally since 2012 (as of the most recent data update)

    Underlying disease

    Cumulative number of reported cases globally since 2012 (as of the most recent data update)

    Commonly reported comorbidities

    Cumulative number of reported cases globally since 2012 (as of the most recent data update)

    Note: The comorbidities listed are those most reported for MERS cases and may not represent the complete range of underlying health conditions. Cases may have one or more comorbidities.

    Metadata

    Glossary

    CaseConfirmed human infection with Middle East respiratory syndrome coronavirus (MERS-CoV)
    AgeThe age of the case at the time of data collection
    SexThe sex of the case (e.g., male, female, or other)
    OccupationThe job of the case; here grouped into healthcare, camel-related or other
    DateDate of symptom onset of the case; if not available, date of reporting is used instead
    Contact with Camels and/or their productsIndicates if the case had direct contact with camels or camel products within 14 days prior to symptom onset
    Reporting countryA country reporting one or more cases
    Place of ResidenceThe geographic location where the case resides
    WHO regionIndicates WHO region of the reporting country
    Confirmed case, by categoryThe classification of the case based on the chain of transmission (i.e., primary, secondary or tertiary)
    Likely place of exposureIndicates the context in which the case acquired the infection (i.e., healthcare-associated infection, community or workplace transmission)
    SymptomsThe clinical signs and symptoms reported by the case or health worker assessing them
    OutcomeWhether the case is recovered or deceased from MERS
    ComorbiditiesPre-existing health conditions of the case
    Underline diseaseA case has one or more comorbidities
    Admission to hospitalIndicates if the case was hospitalized
    Admission to ICUIndicates if the case was admitted to intensive care unit (ICU)
    Last 90 DaysRefers to the thirteen most recent complete epidemiological weeks, covering a full 90-day period based on epidemiological weeks from Monday to Sunday
    WHO RegionsThe World Health Organization (WHO) is divided into six regions with regional offices, each responsible for addressing health challenges and promoting public health within its designated geographical area. These regions serve as administrative units that allow the WHO to tailor its efforts to the specific needs, priorities, and health conditions of member countries within each region
    World Bank Income GroupsThe World Bank classifies economies into income groups based on their Gross National Income (GNI) per capita. These annually updated classifications help the World Bank and other organizations analyze and understand global economic trends, allocate resources, and design development policies

    Copyright and licensing

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