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Actor Val Kilmer, 65, died of pneumonia this week, his daughter confirmed. Dr. Marc Siegel discusses common causes and risks ...

One poster said she was diagnosed with mycoplasma pneumonia — also known as "walking pneumonia" — but that generally causes ...

Moscow said there is "no evidence of a new or unidentified virus" as viral rumors spread on Russian social media.

Multiple reports have surfaced about a mysterious ‘Covid-like’ virus spreading in Russia, causing high fever and, in some ...

A mystery respiratory illness has been reported widely in Russia where patients have been suffering from high temperatures as ...

Researchers in the Bitterroot Valley have seen significant mortality in bighorn sheep over the winter, with all collared rams ...

The rapid spread of such rumours highlights an ongoing challenge for health authorities in Russia and globally.

Despite rising concern, health authorities have remained tight-lipped, refusing to disclose the number of infections and ...

The World Health Organization ( WHO) has denied the reports of a new virus causing some patients in Russia to cough up blood.

Reports of a mysterious virus in Russia causing fever and coughing up blood have sparked concerns. Authorities deny a new ...

Buzz around this mystery virus began with a social media post, highlighting cases diagnosed as acute “upper respiratory tract ...