Image of a longhorn cow laying on the grass, looking straight at the camera. There is another smaller cow behind it, and there is a fence behind the two of them.
“Let me tell ya about herd immunity, pardner…”

What do you mean by “Herd Immunity”?

According to the Gospel of Luke, Jesus was asked about loving one’s neighbor with a…



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René F. Najera, MPH, DrPH

DrPH in Epidemiology. Associate/JHBSPH. Adjunct/GMU. Epidemiologist at a county health dept. Editor, History of Vaccines. Father. Husband. (He/Him/His/El)