The World Health Organization, for reasons unknown, has suddenly changed its definition of a core conception of immunology: herd immunity. Its discovery was one of the major achievements of 20th century science, gradually emerging in the 1920s and then becoming ever more refined throughout the 20th century.
The World Health Organization, for reasons unknown, has suddenly changed its definition of a core conception of immunology: herd immunity. Its discovery was one of the major achievements of 20th century science, gradually emerging in the 1920s and then becoming ever more refined throughout the 20th century.
https://poal.co/s/Health/231824
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