Posted on 13TH JUN 2018
tagged MERS-CoV, Worldwide

A ProMED-mail post
ProMED-mail is a program of the
International Society for Infectious Diseases

Date: 12 Jun 2018
Source: EMRO/WHO Situation Update [edited]

MERS situation update, May 2018
- At the end of May 2018, a total of 2220 laboratory-confirmed cases of Middle East respiratory syndrome (MERS), including 790 associated deaths (case-fatality rate: 35.6 percent) were reported globally; the majority of these cases were reported from Saudi Arabia (1844 cases, including 716 related deaths with a case-fatality rate of 38.8 percent). During the month of May [2018], a total of 12 laboratory-confirmed cases of MERS were reported globally: 11 cases in Saudi Arabia including 1 associated death and 1 case reported in United Arab Emirates.

- A household cluster of 8 laboratory-confirmed MERS cases was reported in Najran Region during the last week of May [2018]. Apart from the index case -- who had history of contact with camels and also consumed raw camel milk before he was diagnosed --, none of the remaining 7 cases in this cluster had any history of contact with camels. The index case had a date of onset of symptoms on [17 May 2018] and by [31 May 2018], 7 symptomatic [secondary] cases were reported from this cluster. More cases are expected to be reported from this cluster as the close contacts are being followed up and the laboratory test results of some of the close contacts are awaiting.

- The demographic and epidemiological characteristics of reported cases, when compared during the same corresponding period of 2013 to 2018, do not show any significant difference or change. Owing to improved infection prevention and control practices in hospitals, the number of hospital-acquired cases of MERS has dropped significantly since 2015.

- The age group of 50-59 years continues to be at highest risk for acquiring infection of primary cases. The age group 30-39 years is most at risk for [secondary] cases. The number of deaths is higher in the age group 50-59 years for [primary] cases and 70-79 years for [secondary] cases."

Communicated by:

[ProMED-mail would like to thank our Rapportuer Mary Marshall for sending a NewsScan report by CIDRAP flagging the update contained in the EMRO/WHO Situation Report above (

According to the tally on my spreadsheet, there were a total of 12 cases of MERS-CoV infection reported in Saudi Arabia during the month of May 2018, and 1 case reported by the UAE. Of the 12 cases reported by Saudi Arabia, 8 were associated with the Najran outbreak - the index case and 7 additional household contact cases and there was 1 additional primary community-acquired case reported (presumably with no direct known high risk exposures during the incubation period). The remaining 3 cases came from Sakaka (Al Jawf region), Hufoof (Ash Sharqiyah - Eastern region), and Tabuk (Tabuk region); 2 with a history of direct exposure to camels, and 1 with no high risk exposure identified (the case from Sakaka in Al Jawf region). The reported case from the UAE, in addition to having a camel farm with almost daily contact with camels, also had a history of travel to Saudi Arabia in the 14 days preceding onset of illness.

Information on the 8 cases associated with the Najran household cluster and the additional primary case was provided by the Saudi Ministry of Public Health. The latest report we have received was posted on ProMED-mail on 2 Jun 2018 and contained information on an additional 3 cases associated with the household cluster bringing the total number of cases associated with that cluster to 11. Recent rumor chatter in the media has suggested there were healthcare workers that were infected, but there has not been confirmation of this as yet.

For those who are interested in the Epidemiologic picture of MERS-CoV, I strongly recommend going to the original Situation Update where there are useful graphics and tables providing information on the known epidemiology of the disease based on the cases reported to WHO. A dynamic map showing a time series of the cumulative geographic distribution of MERS-CoV by country reported cases/infections can be found at: - Mod.MPP

HealthMap/ProMED-mail map
Middle East:]

See Also
MERS-CoV (20): Saudi Arabia (NJ), susp family cluster 20180602.5835120
MERS-CoV (19): Saudi Arabia (NJ) household cluster conf. 20180531.5830431
MERS-CoV (18): Saudi Arabia (NJ) susp. family cluster, RFI 20180530.5829389
MERS-CoV (17): UAE (Abu Dhabi), WHO 20180528.5824390
MERS-CoV (16): UAE (AZ), RFI 20180528.5823719
MERS-CoV (15): Saudi Arabia, WHO 20180525.5801103
MERS-CoV (14): Israel, animal reservoir, camelids 20180506.5787312
MERS-CoV (13): Saudi Arabia, new cases, superspreader 20180418.5754131
MERS-CoV (12): Saudi Arabia 20180402.5724114
MERS-CoV (11): Saudi Arabia 20180322.5702309
MERS-CoV (10): Oman, Saudi Arabia, WHO 20180315.5690014
MERS-CoV (09): Saudi Arabia, WHO 20180308.5671037
MERS-CoV (08): Saudi Arabia, RFI 20180214.5623644
MERS-CoV (07): Saudi Arabia 20180128.5590493
MERS-CoV (06): Saudi Arabia, WHO 20180126.5587442
MERS-CoV (05): Saudi Arabia 20180124.5581936
MERS-CoV (04): Saudi Arabia (RI) genomic evidence of camel role in transmission 20180116.5564064
MERS-CoV (03): Saudi Arabia, new cases, research 20180112.5556427
MERS-CoV (02): Saudi Arabia 20180109.5548385
MERS-CoV (01): Malaysia (ex KSA), Saudi Arabia, UAE (ex Oman) 20180102.5532148
MERS-CoV (77): Saudi Arabia, camels, human, epidemiology, assessment 20171222.5520561
MERS-CoV (01): Saudi Arabia (QS,RI,MD), RFI 20170105.4744802
MERS-CoV (123): Saudi Arabia (MK, AS) new cases 20161231.4734758
MERS-COV (01): Oman, Saudi Arabia 20160105.3911188
MERS-COV (167): acute management and long-term survival 20151231.3904300
MERS-CoV (01): Saudi Arabia, new cases, new death 20150104.3069383
MERS-CoV (69): Saudi Arabia, new case, RFI 20141230.306305
MERS-CoV (01): Bangladesh, KSA, Algeria, UAE, Iran, WHO, RFI 20140616.2541707
MERS-CoV - Eastern Mediterranean (82): anim res, camel, seroepidemiology 20140613.2537848
MERS-CoV - Eastern Mediterranean (01): Saudi Arabia, UAE, Oman, WHO 20140103.2150717
MERS-CoV - Eastern Mediterranean (106): animal reservoir, camel, Qatar, OIE 20131231.2145606
MERS-CoV - Eastern Mediterranean: Saudi Arabia, new case, RFI 20130518.1721601
Novel coronavirus - Eastern Mediterranean (29): MERS-CoV, ICTV nomenclature 20130516.1717833
Novel coronavirus - Eastern Mediterranean: bat reservoir 20130122.1508656
Novel coronavirus - Eastern Mediterranean (06): comments 20121225.1468821
Novel coronavirus - Eastern Mediterranean: WHO, Jordan, conf., RFI 20121130.1432498
Novel coronavirus - Saudi Arabia (18): WHO, new cases, cluster 20121123.1421664
Novel coronavirus - Saudi Arabia: human isolate 20120920.1302733