No therapy, no vaccine. At least, COVID-19 survivors can be tested for antibodies and know they’re immune, right?  Wrong. WHO threw cold water on that assumption on Friday, saying there’s no evidence that if you’ve survived COVID-19, you have immunity, according to the …

One common argument some parents make for declining vaccines for their children is that vaccines are not necessary—that their children are unlikely to get sick even if they are not vaccinated. Perversely, this argument relies in part on parents’ confidence that many other…

Predicting and preventing outbreaks isn’t rocket science—it’s math, writes Kent State University Epidemiology Professor Tara C. Smith.   Immunity levels, population dynamics, microbial properties, and interventions all inform the number of infections transmitted from a…

An always-fatal complication of measles, called subacute sclerosing panencephalitis (SSPE), may be more common than previously thought.   The neurological disorder strikes children years after infection, and the risk was once thought to be 1-in-1,700. But new research has…