ECDC has published Epidemiological update: Middle East respiratory syndrome coronavirus (MERS-CoV). This is the first response to the new Saudi numbers by a major health agency, and a very detailed one. Click through for the full report, which has many useful graphics and links. Excerpt:
Since April 2012 and as of 4 June 2014, 815 cases of MERS-CoV infection have been reported by local health authorities worldwide, including 313 deaths.
On 3 June 2014, the Ministry of Health of Saudi Arabia updated the MERS case count with 113 previously unreported cases representing a 20% increase in the cumulative number of cases. The number of cases is 688 of which 353 have recovered, 282 have died and 53 are receiving care.
These new cases have been retrospectively identified during a review of the data. Ninety-two of the 113 cases reported on 3 June were fatal, increasing the number of deaths from MERS-CoV in Saudi Arabia by 48% from 190 to 282, and raising the case-fatality ratio (CFR) from 33% to 41%. The retrospectively identified newly reported cases date back to May 2013.
Information about age, gender, residence, probable place of infection, whether the case is sporadic/primary or part of a cluster of secondary transmission, health care associated transmission or not, and whether the case is a healthcare worker, is missing for these retrospectively reported cases. In addition, it is unclear whether these cases are meeting the WHO case definition for confirmed cases.
The MOH also announced new measures to improve the capacity and efficiency of Saudi laboratories and testing facilities.
The next-to-last paragraph above is a quietly devastating indictment of the Saudi Ministry of Health.