Word: flu
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Dates: during 1960-1969
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Quick-Change Artists. Why does one man get off lightly, while another is hit so hard? The explanation may lie in both the nature of the virus and the patient's previous bouts with flu. The first A2 Asian virus appeared in 1957 and laid low millions around the world. Thanks to antibody formation, these people developed substantial immunity against further illness from this virus or its kin. But flu microbes, almost unique among the 500 or more viruses that plague man, are capable of quickly altering their antigenic properties. Thus they require different antibodies to neutralize them...
...account for the sharp differences in symptoms among victims, according to the University of Illinois' Dr. Robert L. Muldoon. A severe bout of A2 years earlier left some persons' systems ready to react instantly and forcibly against any related virus. Many of this winter's flu victims had never had Asian flu, and therefore had no foundation antibody on which to build a counterattack...
Camel back Effect. As a result, many physicians believe that HK-68 is especially threatening to young, healthy adults. In most epidemics, only the aged, the infirm or the ailing young develop pneumonia as a result of direct infection of the lungs with flu virus. Others may develop a "secondary" bacterial pneumonia because their systems have been weakened by flu. By contrast, this winter more young men and women have gone rapidly from influenza to influenzal pneumonia. Some victims get out of bed after about with the flu only to be hit by a second round. According...
...latest bulletins from the NCDC report that the epidemic has passed its peak. But for disrupted organizations and miserable individuals, statistics are slim comfort. The new flu will still sicken thousands of Americans before it fades away...
...categories of flu virus appear most often in the U.S.A and B. The A strains seem to mutate more rapidly, causing epidemics. A1 appeared...