In a roundup of some of the latest scientific studies on the novel coronavirus and efforts to find treatments and vaccines for Covid-19, researchers found when a new monoclonal antibody drug was added to treatments being given to hospitalized Covid-19 patients who were still breathing on their own, Humanigen Inc.’s lenzilumab significantly improved their odds of not needing invasive mechanical ventilation.

Scientists are turning a spotlight on China’s version of the origins of the coronavirus pandemic as they scrutinize everything from the virus’s genetic code to proxy data, such as cremations and internet searches for disease symptoms.

British researchers will study the genes of thousands of ill COVID-19 patients to try to crack one of the most puzzling riddles of the novel coronavirus: why does it kill some people but give others not even a mild headache?

Cambridge, Massachusetts-based Moderna is one of the first companies to move a vaccine against COVID-19 into clinical trials.

AstraZeneca made further headway in a race with competitor GlaxoSmithKline to use a promising new class of drugs to treat ovarian cancer.