COVID-19 antibodies found in wild US deer
A USDA study has determined that some free-ranging deer in some states have been exposed to the virus that causes COVID-19.
Herd immunity stopped avian cholera in eiders
A Carleton University study released in January detailed how herd immunity was instrumental in stopping avian cholera from devastating the largest breeding population of northern common eiders in the Canadian Arctic, on Mitivik Island in Nunavut.