A brief roundup 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.

U.S. researchers, following the lead of scientists in other countries, launched studies to see whether widely available, low-cost generic drugs can be used to help treat the illness caused by the new coronavirus.

The Food and Drugs Administration is expanding the regulatory agency’s investigation into impurities in U.S. generic drugs beyond a class of hypertension drugs known as angiotensin II receptor blockers (ARBs).

The U.S. Food and Drug Administration will temporarily allow certain manufacturers to sell blood pressure medications containing specified levels of a probable cancer-causing impurity in order to maintain adequate supplies of the drug.

The FDA – looking to ease shortages triggered by several manufacturers recalling the blood pressure medicine valsartan over possible cancer risk – approved a new generic version of the drug.