Word: germ
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Hastily he planted the scrapings in test tubes with germ culture mediums. He sealed the tubes so that no modern air could affect the scrapings. If he did have pre-Cambrian life in his tubes modern air would spoil his research, for the earth's present atmosphere is quite different from that of geological ages...
Professor Lipman believes that the ancient germ spores have been sealed up in minute cases, similar to the cocoons in which larvae rest. It is well known that microbes can live through great heat or cold, and remain quiescent for long periods. But the age of Professor Lipman's rods astounded even him. He duplicated the experiment with organisms from Pliocene rocks, one to two million years...
...into Cuba determined to clear up the mystery of yellow fever. They submitted their bodies to the bite of infected mosquitoes and established beyond dispute that yellow fever is transmitted by the bite of infected mosquitoes of the species Stegomyia fasciata. But the commission was unable to identify the germ. Since then there have been many attempts, many false alarms. Researcher Noguchi's Leptospira icteroides has received scientific support; has come closest to being accepted as the organism responsible for yellow fever. Survivor Agramonte was never satisfied with its credentials. Both before and after Noguchi's death...
Septic sore throat is caused by Streptococcus hemolyticus, a tiny germ closely resembling and related to the streptococci of scarlet fever. It is generally distributed in milk, but is a disease of man, not of cows. The milk may become infected by human hands, or, what seems more logical in view of the widespread character of the epidemics,* the udder of the cow becomes infected from human hands, releasing a stream of contagion at every milking time. Most of the epidemics have occurred during the winter and spring months. Always they are explosive: a sudden appearance of sore throat throughout...
...TIME, July 23, 1923). Long known as "rabbit fever" among land-workers for its annual toll of thousands of rabbits and ground squirrels, this disease has been recognized as dangerous to man only in the last three years. Discovered in Tulare County, Calif. (1910), it was named tularemia. The germ in man was identified by Public Heath Server Francis in 1925, and the disease is known among the profession as "Francis' disease." Peering through microscope, poring over petrie dish, Dr. Francis and six of his assistants were infected. They recovered, having learned more about the strange malady...