Evidence is emerging suggesting that COVID-19 does not spread equally. A minority of infected individuals seem to spread the virus easily to many people, while most infected individuals spread it to few others or no one at all, likely through a combination of circumstance, environment, and possibly biology. Why is this, and what does it mean for coronavirus containment strategies?
Last week, the largest epidemiological study of its kind was published and concluded, once again, that autism is primarily due to genes and that the environmental component of autism risk is much smaller. Not surprisingly, once again antivaxers didn't want to hear that message.
A handy research tool has just helped answer some long standing questions about the spaying of female dogs and urinary incontinence.
Lessons in confounding epidemiology: Household cleaning products, the microbiome and childhood obesity
Do eco-friendly cleaning products prevent obesity? Probably not, and you shouldn't be eating them anyway.
It's indisputable that vaccines protect against specific infectious diseases. What's less well known is how a vaccine like the measles vaccine protects against more than just measles.