Navigation Links
HIV decline in Zimbabwe linked to behavioural change

An international research team believes that changes in behaviour among the population have accelerated the recent decline in HIV infection in Eastern Zimbabwe.

Research published today in Science shows how there has been an almost 50 percent decline in HIV prevalence in some groups, which the researchers attribute to people delaying when they first have sex and having fewer casual partners.

They found HIV prevalence fell most steeply at young ages, with a drop in prevalence of 49 percent for women aged between 15 and 24, and a 23 percent drop in men aged 17 to 29.

In 2003 Zimbabwe was estimated to have 1.8 million people infected with HIV/AIDS out of a population of 12 million.

Dr Simon Gregson, from Imperial College London, who led the research, said: "Although we can't say for certain, fear of HIV and AIDS may have influenced this change in behaviour, with Zimbabwe's well educated population, good communications, and health service infrastructure, all combining to create this effect."

The researchers from Imperial College London and the Biomedical Research and Training Institute, Zimbabwe studied 9,454 people recruited from two household censuses, the first conducted between 1998 and 2000, and the second between 2001 and 2003.

They found that overall HIV prevalence declined from 23 percent to 20.5 percent. In men aged 17 to 54 it had declined from 19.5 percent to 18.2 percent, while in women aged 15 to 44, it declined from 25.9 percent to 22.3 percent.

Professor Geoffrey Garnett, from Imperial College London, and one of the researchers, said: "A key reason for this decline appears to be the reduction in the number of casual sexual relationships, although there was also a delay in the onset of sexual activity and increases in condom use prior to the time of the study may also have contributed".

The study found that among 17 to 19 year old men, only 27 percent had commenced sexual activity in the late r census, compared with 45 percent in the earlier one. For women aged 15 to 17, the percentage reporting sexual experience dropped from 21 percent to 9 percent. At the same time, the proportions of men and women reporting a recent casual sexual partner fell by 49 and 22 percent respectively.


Source:Imperial College London

Related biology news :

1. US life expectancy about to decline, researchers say
2. Alzheimers cognitive decline slowed
3. Horseshoe crab decline threatens shorebird species
4. Contaminants linked to sturgeon decline in Columbia river
5. Alaska seal pup diet may hold key to decline of population
6. Acid rain causing decline in sugar maples, say researchers
7. Alarming decline in Nepals rhinos and tigers in former Maoist stronghold
8. Steep oxygen decline halted first land colonization by Earths sea creatures
9. Climate change creates dramatic decline in red-winged black bird population
10. Individual differences in a clock gene predict decline of performance during sleep deprivation
11. Power-boosting signal in muscle declines with age
Post Your Comments:

(Date:11/19/2015)... -- Although some 350 companies are actively involved in molecular ... according to Kalorama Information. These include Roche Diagnostics, Hologic, Abbott ... of the 6.1 billion-dollar molecular testing market, according to ... Diagnostic s .    ... one company and only a handful of companies can ...
(Date:11/17/2015)... Paris , qui ... Paris , qui s,est tenu du ... leader de l,innovation biométrique, a inventé le premier scanner ... sur la même surface de balayage. Jusqu,ici, deux scanners ... les empreintes digitales. Désormais, un seul scanner est en ...
(Date:11/12/2015)... Nov. 12, 2015  A golden retriever that stayed ... dystrophy (DMD) has provided a new lead for treating ... the Broad Institute of MIT and Harvard and the ... . Cell, pinpoints a protective ... the disease,s effects. The Boston Children,s lab of ...
Breaking Biology News(10 mins):
(Date:11/25/2015)... PUNE, India , November 26, 2015 /PRNewswire/ ... The Global Biobanking Market 2016 - 2020 ... biobanks by maintaining integrity and quality in long-term ... and enabling long-term cost-effectiveness. Automation minimizes manual errors ... improves the technical efficiency. Further, it plays a ...
(Date:11/25/2015)... , November 25, 2015 Studies ... and human plaque and pave the way for more effective ... in cats     --> ... commonly diagnosed health problems in cats, yet relatively little was ... Two collaborative studies have been conducted by researchers from the ...
(Date:11/25/2015)... 25, 2015 /PRNewswire/ - Aeterna Zentaris Inc. (NASDAQ:  AEZS; ... and prospects remain fundamentally strong and highlights the ... recently received DSMB recommendation to continue the ZoptEC ... of the final interim efficacy and safety data ... in men with heavily pretreated castration- and Taxane-resistant ...
(Date:11/25/2015)... 2015 The Global Genomics ... professional and in-depth study on the current state ... ) , The report ... definitions, classifications, applications and industry chain structure. The ... markets including development trends, competitive landscape analysis, and ...
Breaking Biology Technology: