Word: barriers
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Dates: during 1990-1999
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...children infected with HIV, and the preliminary results are encouraging. Once investigators start looking for healthy survivors, they find them. Still the question remains -- Why? Does the amount of virus a woman is exposed to make a difference? How effective might her vaginal and cervical tissue be as a barrier against infection? Does it matter if a child is infected while still in the womb or during passage through the birth canal...
...most feared complications of AIDS is its ability to attack the nervous system. Sometimes HIV infects the brain, causing memory loss and other problems. This condition can be treated in children with AZT because the antiviral drug manages to penetrate the cellular barrier that protects the brain. In adults who develop dementia, higher doses are required and may be only partially effective...
...Heinicke said the financial savings offered by the new book constitute only one benefit. Other advantages include "breaking down the barrier between Houses" and expediting facebook distribution, he said...
...south of Schliemann's dig. His find now appears to be the dwelling site of the city's rulers; the still buried wall probably marks Troy's true boundaries and might be the very wall that Achilles reputedly chased Hector around three times. Archaeologists intend to excavate the barrier, which lies 6 to 10 ft. underground, this summer. Still missing are any signs of the Trojan horse...
...removing the cost barrier, however, may not be enough to boost immunization rates, the doctors said...