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Severe acute respiratory syndrome
Several factors contributed, the WHO says, while experts call for case-control studies.
Compelling evidence and prudence dictate higher levels of respiratory protection for health workers.
The findings support the hypothesis that the SARS virus originated in bats.
Researchers find evidence that camels have been exposed to MERS-CoV or a close relative.
More MERS patients had preexisting health problems and were much more likely to die.
The OIE says there is little evidence of a link between camels and MERS-CoV cases.
Al-Tawfiq JA, Zumla A, Memish ZA. Travel implications of emerging coronaviruses: SARS and MERS-CoV. Travel Med Infect Dis 2014 Sep-Oct;12(5):422-8
He B, Zhang Y, Xu L, et al. Identification of diverse alphacoronaviruses and genomic characterization of a novel SARS-like coronavirus from bats in China. J Virol 2014 (published online Apr 9)
Selvey LA, Antao C, Hall R. Evaluation of border entry screening for infectious diseases in humans. (Perspective) Emerg Infect Dis 2015 Feb;21(2)
Xu C, Wang J, Wang L, et al. Spatial pattern of severe acute respiratory syndrome in-out flow in 2003 in Mainland China. BMC Infect Dis 2014 Dec 31;14:3843
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