Word: a2
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Month Early. Surgeon General Stewart's predictions of a major outbreak of the Asian (A2) strain of flu virus were based on the cyclical and somewhat self-defeating nature of the disease-those infected one year are usually immune to the virus the next. The more infected, the more who become immune. Last winter the flu was strongest in the Western states, while the East, which went through its last major outbreak two winters ago, suffered relatively little. Immunity to influenza viruses built up west of the Rockies and dwindled elsewhere...
...question facing health officials now: how effective will available vaccines be against this year's A2? Flu viruses have the exasperating capability to "drift" each year, changing characteristics to varying degrees and accreting new "armor" against existing vaccines. So far, the virus "drift" does not appear significant. "Present influenza vaccines," says the Communicable Disease Center's Dr. Stephen Schoenbaum, "should afford adequate protection since they contain A-2 strains similar to the ones we have isolated...
...total ∙ U.S. nuclear force and the multiple-teaming of strategic objectives by "cross-targeting," SAC Commander Thomas Power says, he is certain that 90% of the targets would get plastered by U.S. missiles. The mix of which Power talks includes 554 ICBMs, 176 submarine-launched Polaris Al and A2 solid-fueled missiles (90% reliable in tests), 630 B-52 bombers and 720 B-47s. In "cross-targeting," as many as six missiles may be trained on a single target, with a wave of "follow-on" bombers ready to mop up if anything goes wrong. Says Air Force Chief...
...Polaris A2: Range 1,500 miles...
...lightest ever devised for a ballistic missile. The computer, which does the missile's thinking in flight, weighs only half as much as its predecessor. But accuracy has not been sacrificed. In spite of covering a greater distance, the A-3 hits its targets more accurately than the A2...