What was the primary mode of smallpox transmission? Implications for biodefense

This review examines evidence from the history of variolation, data on mucosal infection collected in the last decades of smallpox transmission, aerosol measurements, animal models, reports of smallpox lung among healthcare workers, and the epidemiology of smallpox regarding the potential importance of fine particle aerosol mediated transmission.

Global status of Middle East respiratory syndrome coronavirus in dromedary camels: a systematic review

The review compiled and analyzed all published data on Middle East respiratory syndrome (MERS) in the global camel population to provide an overview of current knowledge on the distribution, spread and risk factors of infections in dromedary camels.

Early transmission and case fatality of Ebola virus at the index site of the 2013–16 west African Ebola outbreak: a cross-sectional seroprevalence survey

This study provides the first evidence of Ebola virus-infected survivors from the index site of the west African outbreak. A thorough retrospective epidemiological study done concomitantly among the resident adult population expands understanding of the initiating events including transmission dynamics, probable transmission chains, lower case fatality rates, and the presence of both mild and asymptomatic cases.