‘How Could the CDC Make That Mistake?’ The government’s disease-fighting agency is conflating viral and antibody tests, compromising a few crucial metrics that governors depend on to reopen their economies. “A negative test result means something different for each test. If somebody tests negative on a viral test, a doctor can be relatively confident that they are not sick right now; if somebody tests negative on an antibody test, they have probably never been infected with or exposed to the coronavirus. (Or they may have been given a false result—antibody tests are notoriously less accurate on an individual level than viral tests.) The problem is that the CDC is clumping negative results from both tests together in its public reporting.”
SO MUCH FOR THE SCIENCE BEING SETTLED: CDC now says coronavirus ‘does not spread easily’ via contaminated surfaces. “Though it’s not exactly clear when, the federal health agency appears to have recently changed its guidelines from early March that simply said it ‘may be possible’ to spread the virus from contaminated surfaces. The CDC now includes ‘surfaces or objects’ under a section that details ways in which the coronavirus does not readily transmit.”
Seems like this merited more than just a stealth revision on a website.