MERS

MERS is the clinical disease associated with Middle East respiratory syndrome coronavirus (MERS-CoV), a pathogenic human coronavirus ^[1][2]. The available literature snippets characterize MERS-CoV as a highly transmissible virus that emerged in humans in the early 21st century and is associated with fatal respiratory disease ^[1][3]. The source boundary also indicates that coronaviruses related to MERS-CoV have been found in bats, and that dromedary camels in Saudi Arabia harbor a dominant MERS HCoV lineage ^[1][3].

The provided sources describe MERS as a respiratory disease that can be fatal in humans ^[3][2]. They do not provide a detailed symptom list, timing, or complication profile beyond the statement that coronaviruses such as MERS-CoV can cause severe respiratory disease and significant mortality ^[3][2]. One review notes that all human coronaviruses can cause severe complications in elderly and immunocompromised individuals, but it does not isolate this effect specifically for MERS in the snippet ^[2]. Source-backed detail on the clinical course is therefore limited in the current payload ^[3][2].

The sources place MERS among the human coronaviruses that emerged after 2000 and were associated with substantial mortality ^[2]. One review states that outbreaks occurred in the Middle East and South Korea during 2015 and identifies a dominant MERS HCoV lineage in dromedary camels in Saudi Arabia as responsible for those outbreaks ^[3]. Another source notes that MERS-CoV and related coronaviruses likely originated in bats, indicating a broader bat-associated coronavirus diversity relevant to spillover risk ^[1]. Beyond these points, the provided snippets do not supply incidence, case counts, or surveillance burden estimates ^[1][3][2].

The source material does not provide a direct route of person-to-person transmission or a detailed exposure chain for MERS. It does state that MERS-CoV likely originated in bats and that dromedary camels in Saudi Arabia harbor a dominant MERS lineage associated with the 2015 outbreaks, supporting an animal-associated spillover context ^[1][3]. No further source-backed detail on persistence, environmental transmission, or specific exposure settings is available in the payload ^[1][3].

The provided sources do not identify a formal risk-group list for MERS. The only population-level susceptibility statement in the snippets is that all human coronaviruses can cause severe complications in elderly and immunocompromised individuals, though this is not presented as MERS-specific in the source text ^[2]. Animal exposure to camels is implicated indirectly through the lineage linked to the Middle East and South Korea outbreaks, but the snippets do not specify exposure intensity or occupational categories ^[3].

The provided snippets do not describe specific preventive measures, vaccine use, case isolation protocols, or animal-exposure controls for MERS. The most defensible prevention-related interpretation from the sources is that awareness of bat-associated coronavirus diversity and the camel-associated lineage linked to outbreaks is relevant to spillover risk ^[1][3]. Source-backed detail on actionable prevention strategies is not yet available in the current materials ^[1][3].

In surveillance terms, MERS should be interpreted as a severe coronavirus disease with documented epidemic activity in some countries and a known animal-associated reservoir context in the source material ^[3][2]. The available evidence supports monitoring for outbreak signals linked to the Middle East and to imported or travel-associated events, but it does not provide operational thresholds or case definitions ^[3][2]. Because the snippets are limited, surveillance users should treat the current profile as a high-level epidemiologic summary rather than a complete field guide ^[1][3][2].

1. 1 Cui J et al. Origin and evolution of pathogenic coronaviruses. Nat Rev Microbiol. 2019 Mar. PMID: 30531947. doi: 10.1038/s41579-018-0118-9. PubMed: https://pubmed.ncbi.nlm.nih.gov/30531947/
2. 2 Kesheh MM et al. An overview on the seven pathogenic human coronaviruses. Rev Med Virol. 2022 Mar. PMID: 34339073. doi: 10.1002/rmv.2282. PubMed: https://pubmed.ncbi.nlm.nih.gov/34339073/
3. 3 Su S et al. Epidemiology, Genetic Recombination, and Pathogenesis of Coronaviruses. Trends Microbiol. 2016 Jun. PMID: 27012512. doi: 10.1016/j.tim.2016.03.003. PubMed: https://pubmed.ncbi.nlm.nih.gov/27012512/
4. 4 Mers. Johann Jakob Spreng, Allgemeines deutsches Glossarium. Historisch-etymologisches Wörterbuch der deutschen Sprache online. 2025. doi: 10.24894/sprengglossarium_m05546. DOI: https://doi.org/10.24894/sprengglossarium_m05546
5. 5 MERS-Coronavirus (MERS). Springer Series in Biophysics. 2023. doi: 10.1007/978-3-031-36773-1_12. DOI: https://doi.org/10.1007/978-3-031-36773-1_12
6. 6 MERS eller mers? Tidsskrift for Den norske legeforening. 2016. doi: 10.4045/tidsskr.16.0931. DOI: https://doi.org/10.4045/tidsskr.16.0931

ICD-10

U00-U49

ICD-11

1D65.1

Total cases

372

Peak month

2015-01

Coverage

4 reporting countries · 2026-01-01 → 2026-06-01