By Nancy Lapid

(Reuters) – The following is a roundup of some of the latest scientific studies on the novel coronavirus and efforts to find treatments and vaccines for COVID-19, the illness caused by the virus.

Gut bacteria tied to COVID-19 severity, immune response

The microscopic organisms living in our intestines may influence the severity of COVID-19 and the body’s immune response to it, and could account for lingering symptoms, researchers reported on Monday in the journal Gut. They found that the gut microorganisms in COVID-19 patients were very different from those in uninfected individuals. “COVID patients lack certain good bacteria known to regulate our immune system,” said Dr. Siew Ng of The Chinese University of Hong Kong. The presence of an abnormal assortment of

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