More conviction on HIV and AIDS
Article Abstract:
Haemophiliacs infected with human immunodeficiency virus (HIV) had ten times higher mortality rate than the uninfected haemophiliacs as revealed by report of a team of epidemiologists based on the records of the British National Haemophilia register. These statistics represent satisfactory evidence for the influence of HIV virus in mortality rates of AIDS patients. A total of 1,227 patients out of 6,287 patients in the register were infected during 1979-86. Patients' lifestyles were not considered in the studies to avoid confusion.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1995
User Contributions:
Comment about this article or add new information about this topic:
Regional trends in aquatic recovery from acidification in North America and Europe
Article Abstract:
Levels of acidic deposition from the atmosphere have fallen during the 1980s and 1990s over large areas of North America and Europe. This is believed by many to have led to observed reversals in surface-water acidification. Regional trends between 1980 and 1995 in indicators of acidification were examined and lak and stream sulphate concentrations were found to have fallen in all areas apart from Great Britain. However regional falls in lake and stream nitrate concentrations were rare, and if seen, were very small.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1999
User Contributions:
Comment about this article or add new information about this topic:
AIDS: trends, predictions, controversy
Article Abstract:
Many countries have established unlinked secret screening of HIV prevalence to study the trend of HIV spread. Previous studies suggest that AIDS is still at its early stages and there is a slowing of its spread among heterosexuals and homosexuals. Methods of extrapolation, complex mathematical models and back calculation methods have been applied to understand the trend of the spread of AIDS. Risk-prone groups should be educated about AIDS as a precautionary measure.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1993
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Closure of the Central American Isthmus and its effect on deep-water formation in the North Atlantic. Gulf Stream shifts following ENO events
- Abstracts: Extremely acid Permian lakes and ground waters in North America. Identification of comet Hyakutake's extremely long ion tail from magnetic field signatures
- Abstracts: Extinction of a species of land snail due to infection with a microsporidian parasite. Role of patch size, disease and movement in rapid extinction of bighorn sheep
- Abstracts: Molecular potential. The role of gravitational potential energy in active deformation in the southwestern United States
- Abstracts: Regional trends in mercury distribution across the Great Lakes states, north central USA. Prehistoric increases in the pH of acid-sensitive Swedish lakes caused by land-use changes