Auris Medical shares skyrocketed after the announcement of lab test results that appeared to show the company’s nasal spray AM-301 could potentially protect users against Covid-19, according to Business Insider.

The Covid-19-causing coronavirus is mutating while spreading around the world in the pandemic, but none of the mutations currently documented appears to be making the SARS-CoV-2 virus able to spread more rapidly, scientists said.

Genentech’s influenza treatment Xofluza (baloxavir marboxil) was granted approval by the U.S. Food and Drug Administration for use in people 12 years and older, making it the first single-dose post-exposure prophylaxis strategy approved by the regulatory agency.

People who have had Covid-19 are highly unlikely to contract the disease again for at least six months after their first infection, according to a British study of healthcare workers on the frontline of the fight against the coronavirus pandemic.

After months of urging the public to wear masks and facial coverings to help stop infected people from spreading Covid-19, the Centers for Disease Control and Prevention (CDC) stated in newly released guidance that masks also protected the mask wearer from being infected.

In a Reuters roundup of some of the latest scientific studies on the novel coronavirus and efforts to find treatments and vaccines for Covid-19, common cold antibodies yield clues to Covid-19 behavior.

A study of the lungs of people who have died from Covid-19 found persistent and extensive lung damage in most cases and may help doctors understand what is behind a syndrome known as ‘long Covid’, in which patients suffer ongoing symptoms for months.

The UK government’s Covid-19 Vaccine Taskforce and the contract research company Open Orphan announced a $13 million (£10 million) plan to test investigational vaccines in volunteers who are then intentionally exposed to SARS-CoV-2, the virus that causes Covid-19.

Australian researchers said the virus that causes Covid-19 can survive on banknotes, glass and stainless steel for up to 28 days, much longer than the flu virus, highlighting the need for frequent cleaning and handwashing.

The U.S. National Institutes of Health is launching a clinical trial of a combination of Gilead Sciences’ antiviral drug remdesivir (Vitrakvy) and hyperimmune intravenous immunoglobulin (hIVIG).