Background The initial cases of novel coronavirus (2019-nCoV)–infected pneumonia (NCIP)
occurred in Wuhan, Hubei Province, China, in December 2019 and January 2020. We …

We identified seasonal human coronaviruses, influenza viruses and rhinoviruses in exhaled
breath and coughs of children and adults with acute respiratory illness. Surgical face masks …

Background A range of public health measures have been implemented to suppress local
transmission of coronavirus disease 2019 (COVID-19) in Hong Kong. We examined the effect …

Background: Few data are available about the effectiveness of nonpharmaceutical interventions
for preventing influenza virus transmission. Objective: To investigate whether hand …

We report temporal patterns of viral shedding in 94 patients with laboratory-confirmed COVID-19
and modeled COVID-19 infectiousness profiles from a separate sample of 77 infector–…

Background Estimates of influenza-associated mortality are important for national and
international decision making on public health priorities. Previous estimates of 250 000–500 000 …

As of 29 February 2020 there were 79,394 confirmed cases and 2,838 deaths from COVID-19
in mainland China. Of these, 48,557 cases and 2,169 deaths occurred in the epicenter, …

Since the outbreak of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the
virus that caused coronavirus disease 2019 (COVID-19), the use of face masks has become …

Background The coronavirus disease 2019 (COVID-19) epidemic, caused by severe acute
respiratory syndrome coronavirus 2 (SARS-CoV-2), began in Wuhan city, Hubei province, in …

Background Hand, foot, and mouth disease is a common childhood illness caused by
enteroviruses. Increasingly, the disease has a substantial burden throughout east and southeast …