The national IHR focal point of Saudi Arabia has reported 35 Middle East Respiratory Syndrome Coronavirus (MERS-CoV) through the first ten days of June, with more than 90 percent of cases associated with three simultaneous clusters of MERS in Riyadh hospitals, of which two are related.
The World Health Organization (WHO) provides the following information on the three clusters:
A cluster of MERS has been identified in a hospital in Riyadh city, Riyadh Region. Twenty three cases associated with this cluster thus far and include the first identified case (a 47-year-old male reported on 1 June), 14 asymptomatic health care worker contacts, one household contact, and seven hospital contacts who were patients.
This MERS cluster is occurring in a second hospital in Riyadh City, Riyadh Region. This cluster is related to cluster 1 above. The first identified case of this second cluster visited the emergency room of the cluster 1 hospital. He was asymptomatic and following this visit in hospital 1, he continued to receive kidney dialysis sessions in the second hospital. To date, this cluster involves six cases, including the case involved in cluster 1, and secondary household and health care worker contacts.
This MERS cluster is currently occurring in a third hospital in Riyadh city, Riyadh Region. To date the cluster involves the four cases including the first identified case who reported contacts with dromedary camels and three asymptomatic or mild cases who were health care worker contacts.
The Ministry of Health of Saudi Arabia is evaluating each case and their contacts and implementing measures to limit further human-to-human transmission and bring these outbreaks to a control.
Globally, 2015 laboratory-confirmed cases of infection with MERS-CoV including at least 703 related deaths have been reported to WHO since 2012.
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