Word: infectivity
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Dates: during 1940-1949
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...agencies' first aim was to eliminate the red-light district. This project annoyed many Army commanders, who argued that running prostitutes into the street would only increase the difficulty of venereal control. Nonsense, said Charlie Taft: a housed harlot could infect 20 to 75 soldiers a night, while the problems of a streetwalker limited the number of her prospective customers to five or six, and "red-light districts tend to advertise the product...
...conducting. We had been rehearsing the music for several weeks and had it down thoroughly, but Sever Hall had never heard anything like what "Koussy" coaxed out of us at his first rehearsal. Something of his personality, of his naive, fanatical, almost religious approach to the music seems to infect anyone who works under...
Once before, the Chinese said, Japanese flyers had tried to infect a Chinese city with plague. In 1940 they had dropped infected fleas on Chekiang Province. The fleas were wrapped in little cotton bags with rice or grain, to attract the rats which catch and spread the disease. But cold killed the rats first...
...louse feeds on human blood and abhors soap. But where there is no cleansing disturbance the louse flourishes&151;the female easily produces over 100 mature offspring in two months. Typhus epidemics begin when lice suck up typhus germs with the blood of infected human beings, carry the germs to others and infect them. The lice themselves eventually die of the disease they carry&151;after they have spread it among...
...typhus germ is called Rickettsia prowazeki, after Typhus Researchers Howard Taylor Ricketts and Stanislaus Prowazek. In feeding, the infected louse bows its head, pricks the skin with sharp stylets for bloodsucking, and meanwhile often excretes Rickettsiae on to the skin. When a victim scratches his itching louse bite, he is apt to infect himself by rubbing Rickettsiae into the scratch...