The findings come on the cusp of the Northern Hemisphere flu and respiratory syncytial virus seasons and rising US COVID-19 cases.
Study suggests medical masks may offer similar protecion as N95 respirators, but experts say hold on.
Public health professionals use some terms imprecisely, others incorrectly, and still others technically accurate but almost sure to be misunderstood by the public.
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New details in the outbreak emerge, including potential human-to-human spread.
Also, a health official says there may be a family cluster among the outbreak patients.
The woman has no fever or respiratory symptoms and may go home soon.
Officials put the case count at 41 and note how the new virus relates to the SARS virus.
Wuhan's health commission hasn't released any updates on the outbreak since Jan 5.
The virus seems to group with the betacoronaviruses, the genus that includes the SARS virus and MERS-CoV.
Coronaviruses that can cause serious human disease are on the rise, emphasizing the importance of public health preparedness.
Hong Kong, meanwhile, reports a respirator shortage.
The CDC issues a watch but does not call for travel limits.
The outbreak raises questions about not only the pathogen, but how patients were exposed.
