HC Deb 02 March 2004 vol 418 cc804-5W
Tom Brake

To ask the Secretary of State for International Development what recent assessment his Department has made of trends in HIV/AIDS rates in countries identified by UNAIDS as the worst affected countries. [156398]

Mr. Gareth Thomas

DFID provides support to UNAIDS, and looks to them to provide information on the global status of the HIV/AIDS epidemic. Last December, UNAIDS launched the Global Epidemic Update (available at www.unaids.org) which provided a synthesis of trends in the epidemic in all regions. They will be producing detailed country information to launch at the World AIDS Conference in July 2004 in Bangkok.

Tom Brake

To ask the Secretary of State for International Development (1) what representations his Department has made to UNAIDS about changes to future exercises estimating HIV/AIDS prevalence rates in sub-Saharan Africa, to include population-based surveys as opposed to surveys which indicate trends in HIV prevalence; [156438]

(2) what representations his Department has (a)received from non-governmental organisations and (b) made to UNAIDS on over-estimates of HIV/AIDS rates in sub-Saharan Africa by UNAIDS; [156784]

(3) what research his Department (a) has commissioned and (b) plans to commission into differences between data based on population-based surveys and on ante-natal clinic-based surveys in giving reliable estimates of the level of HIV/AIDS infection in sub-Saharan Africa; [156397]

(4) what representations his Department (a) has made and (b) plans to make to UNAIDS to include population-based HIV survey data in UNAIDS' next report on the global HIV/AIDS epidemic. [156400]

Mr. Gareth Thomas

We have not received any representations from non-governmental organisations on over-estimates of HIV/AIDS rates in sub-Saharan Africa. This Department does not plan to commission research into the differences between data based on population-based surveys and on ante-natal clinic-based surveys in giving reliable estimates of the level of HIV/AIDS infection in sub-Saharan Africa. UNAIDS has the mandate to provide information on the status of the epidemic.

UNAIDS included information about methodological issues relating to differences between data taken from these two different sources in the Global Epidemic update, which was released last World AIDS day. They concluded that population based surveys are likely to underestimate true HIV prevalence in most cases, because some respondents are absent from the household at the time of a survey and some refuse to participate. UNAIDS also recognise that most antenatal clinic-based surveillance systems have limited geographical coverage, which can lead to wide variations in the quality of the national estimate of HIV prevalence.

UNAIDS is now doing some analysis linking behavioural data to the surveys, to see whether and how that has affected the result of the population-based surveys. They will convene a meeting in May to analyse different results across a number of countries in sub-Saharan Africa from the two sources of data. They aim to report findings at the World AIDS Conference in Bangkok in 2004.

We have not made any specific representations to UNAIDS about changes to future exercises estimating HIV/AIDS prevalence rates in SA, to include population based surveys as opposed to surveys which indicate trends in HIV prevalence. DFID is in dialogue with them on issues around data sources for HIV estimates. UNAIDS contend that conducting ante-natal clinic-based surveys and population surveys at three to five year intervals can serve as valuable components of surveillance systems and can help improve estimates of the levels and trends in HIV prevalence. This Department supports UNAIDS in their efforts to analyse the different results from different sources, rather than relying on one source alone. All HIV estimates need to be assessed critically. Using different sources for data and interrogating the results will always provide more robust analysis than relying on one source.

Mr. Nigel Jones

To ask the Secretary of State for International Development what support the Department is providing for research into developing vaccines to prevent HIV/AIDS. [157486]

Mr. Gareth Thomas

DFID have agreed to provide a contribution of £14 million over the period January 2000 to December 2004 in support of the work of the International AIDS Vaccine Initiative (IAVI).

IAVI is a global non-profit making organisation that is working to speed the development and distribution of preventive AIDS vaccines through: mobilising support through advocacy and education; accelerating scientific progress; encouraging industrial participation in AIDS vaccine development; and assuring global access. IAVI's stated mission is to ensure the development of safe, effective, accessible, preventive AIDS vaccines for use throughout the world.

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