WHO has changed the definition of “herd immunity” to only include vaccine-derived immunity.
Old:
New:
Someone once observed that the viewpoint of a researcher, or bureaucrap often depends on who’s signing their paycheck.
WHO has changed the definition of “herd immunity” to only include vaccine-derived immunity.
Old:
New:
Someone once observed that the viewpoint of a researcher, or bureaucrap often depends on who’s signing their paycheck.