Medicine: Beefing Up the Vaccine

With an estimated 5,000,000 Asian flu cases already reported in the U.S., Surgeon General Leroy Burney of the U.S. Public Health Service predicted last week that the nation faces new epidemics in the next eight to ten weeks in areas not hitherto stricken. After that, he hoped, "we will be going down hill." So far, with nearly 400 deaths attributed to Asian flu and its complications, the death rate is a minute fraction of 1%.

Because the vaccine, containing 200 virus units per shot, has given protection to no more than 81% of those inoculated (in some tests, it is suspected, far...

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