Keiko & all;
Two articles showed up on page 344 of the Nov 29, 1997 issue of Science News. (http://www.sciencenews.org/) Neither are online. However, they are short so here they are:
"Two HIV tests prove better than one
A combination of blood and urine tests for HIV detects more infections than either test alone, a new study shows.
Some HIV-positive individuals may produce antibodies to the AIDS virus in one bodily fluid but not another, occasionally enabling the virus to evade detedtion by a single procedure, researchers at Calypte Biomedical Corp. in Berkeley, Calif., report in the November Nature Medicine. After testing blood and urine samples from 11,334 people, they found evidence that 1,181 were HIV-positive. Of this group, 25 had discrepant tests -- 10 showed positive only in urine and 15 only in blood.
Thus, dual testing of people at risk of infection may ferret out some hidden cases of HIV, says study coauthor Howard B. Urnovitz, a microbiologist at Calypte.
In the same issue of Nature Medicine, researchers at the University of Milan in Italy examining heterosexual couples found several people who were exposed to HIV but who tested negative in blood screenings. Some of them produced HIV antibodies in urine and vaginal samples, however. This points to a "compartmentalized" immune response, in which HIV-specific antibodies in the vaginal mucus lining might prevent the virus from reaching cellula targets, the authors say."
"Teen chlamydia infections widespread
A study of 10,118 sexually active teenagers in the Seattle area finds that 8.6% of girls and 5.4% of boys had chlamydia, the most common sexually transmitted bacterial disease in the United States. In the study, researchers at the University of Washington tested urine samples collected at clinics, detention centers, school clinics, and community-based youth organizations. The findings appear in the November 1 Annals of Internal Medicine.
If untreated, chlamydia can cause pelvic inflammatory disease, infertility, and ectopic pregnancy -- a condition in which the fertilized egg implants outside the uterus. Three-forths of the infected girls and nearly all of the infected boys reported no symptoms."
Hasn't there been a relationship between Calypte and Triby?
Regards,
dmg |
