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.

Large WHO trial casts doubt on remdesivir and other drugs

In a blow to one of the few drugs being used to treat COVID-19, the World Health Organization (WHO) said interim trial results suggest that Gilead’s remdesivir was no better than a placebo at limiting severely ill patients’ need for mechanical ventilation, the length of their hospital stay, or their risk of death. The trial involved 11,266 hospitalized adults with COVID-19 in more than 30 countries, including 2,750 who were randomly assigned to receive remdesivir. The trial also

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