Coronavirus immunity is a mystery. Scientists are trying to crack the case

The thinking among immunologists and infectious disease experts amid the pandemic has been that being infected with Covid-19 is likely to protect individuals for some time from future infection. But what that protection looks like — and for how long it lasts — is still a mystery. Now, by analyzing blood samples from those who have recovered from Covid-19 infection, scientists are mapping out the kinds of antibodies that were produced by the body in response to the virus, and piecing together a picture of the ingredients needed for future immunity against SARS-CoV-2. STAT's Andrew Joseph has more here. 

Here's what else is new with Covid-19:

• Following weeks of criticism about its handling of coronavirus testing at its detention centers, U.S. Immigration and Customs Enforcement announced yesterday that it is offering testing to all those held at two facilities in Washington and Colorado. More than 800 migrants of the 25,000 currently in ICE custody have tested positive for Covid-19.
• Health care revenue dropped by nearly 50% in April 2020 due to the pandemic, according to a new analysis of in-network payments compared to April 2019. Oral surgery took the biggest hit — 92% reduction in revenue in April— while pediatric primary care saw a 35% dip in revenue. 
• In the two weeks since President Trump announced the U.S. would be withdrawing funding for the WHO, not much seems to have changed to suggest the administration was following through. The global health agency hasn't been formally notified of the change, nor have health officials in the Trump administration shut off from cooperating with WHO officials. “We had a very good discussion with Secretary Azar last week," WHO Director-General Tedros Adhanom Ghebreyesus told reporters yesterday, adding, "And he assured me of U.S. continued commitment to support in the fight, especially against Ebola."