Interesting …

… Trump Names COVID Contrarian to Head NIH, Restore Faith in Science In 1928 , Dr. Alexander Fleming was investigating the properties of Staphylococcus bacteria. He grew some in a petri dish before leaving for vacation. When he got back, a strange mold had attacked the bacteria, destroying it. He noticed the mold seemed to be preventing the bacteria around it from growing. He correctly deduced that the mold must have been secreting a substance that acted as a self-defense chemical. Fleming also had some good luck. The preferred lab animals at the time were dogs. but for some reasonreason, none were available at the tupime. so he had to settle on white rats. Luckily for him and us. dogs are allergic to penicillin. White rats react as we do. hHence, we have penicillin.