Word: viral
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
DIED. Frank Reynolds, 59, scrupulous, committed anchorman of ABC's World News Tonight; of viral hepatitis complicated by bone cancer; in Washington. A veteran of Chicago's competitive local journalism, Reynolds joined ABC in 1965 and covered the White House and other major beats before co-anchoring the evening news from 1968 to 1970, returning to that chair again in 1978. Widely respected by colleagues for his honesty, fairness and rectitude, he often brought an emotional edge to his work: showing pain at the assassination of Egyptian President Anwar Sadat and sudden rage when he received conflicting reports...
...Haitian connection is still puzzling. The disease apparently broke out on the impoverished Caribbean isle in 1981, at about the same time as it did in the U.S. Some experts suspect that AIDS is caused by a newly introduced viral agent from Africa, where Kaposi's is common, and may have been transmitted by Haitians who once worked in Zaïre. Port-au-Prince has many popular gay bars, and the disease could have been brought back to the U.S. by visiting Americans?or taken to Haiti by Americans in the first place. Recent investigations suggest that the disease...
Like X rays, UV radiation can alter cell DNA, producing the mutations associated with cancer. "Both UVA and UVB are carcinogenic," says Harvard Photobiologist Madhu Pathak. UV also appears to suppress the body's immune system. This may explain why certain viral infections, such as chicken pox and fever blisters, become more severe in the sun. And since the immune system is believed to play a role in preventing tumor growth, its suppression "may also be an aggravating factor in the development of skin cancer," says Dr. Margaret Kripke of the National Cancer Institute...
Relationships like these move into the area beyond disorders and into the actual meaning of sleep. Why, for instance, do viral infections like mononucleosis or even the common cold cause sleepiness...
Herpes (Greek for a creeping, inflammatory illness) has become notorious in the U.S. because of the type called herpes simplex, which is passed among humans by sexual contact. The name, however, covers some 50 viral infections that afflict animals. The equine variety is transmitted not by mating but by coughing or sniffling and can be "carried" by a seemingly well animal, just as the virus can reside in some humans with no visible ill effects...