Medicine: Capsules, Oct. 20, 1952

¶One of the biggest difficulties facing researchers in search of a polio vaccine has been the fact that polio virus could not be grown in a laboratory without rare and expensive nutrients for the virus to feed on (e.g., monkey testicles). Last week Dr. Herald R. Cox reported that Lederle Laboratories has found a way to grow the Lansing strain of virus in fertile hens' eggs, has already made a vaccine which works on monkeys.

¶The 1952 polio epidemic was tapering off but slowly, with 3,227 cases reported in one week (9% fewer than the week before). The total for the...

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