Viruses mutate all the time. Most of the new variants die out. Sometimes they spread without altering the virus’s behavior. Very occasionally, they trigger...
Nations worldwide are pledging billions to buy COVID-19 vaccines even before they have proven to be successful. We explain how advance-purchase deals work and...
In 2014, Burlington, Vermont, the birthplace of Ben and Jerry’s ice cream and Senator Bernie Sanders' stomping grounds, announced that it had reached an energy...
Viruses mutate all the time. Most of the new variants die out. Sometimes they spread without altering the virus’s behavior. Very occasionally, they trigger...
