The purpose of this study is to collect medical information about HIV-positive pregnant women and their babies who have been (or are being) seen at study sites. This information will be used to help design future research studies for these patients.

The population of HIV-positive pregnant women and their babies who are seen at study sites has not been officially examined. In order to design future studies to research the best care for these patients, this study will examine important characteristics and the general number of women in these trials.

The population served at affiliated ACTG sites has not been officially described. Anecdotal evidence, however, has surfaced regarding the characteristics of HIV-infected pregnant women and the current standard of care during pregnancy. This chart abstraction study is designed to define, more accurately, the pertinent characteristics and general numbers of women in these trials.

In this medical chart abstraction study, pertinent information is collected on all HIV-infected pregnant women and their infants who receive primary or consultative care at PACTG 367 study sites. Part A profiles all HIV-infected women who received care or consultation at study sites and who had a pregnancy outcome between January 1, 1998 through July 1, 1998. [AS PER AMENDMENT 04/12/02: Part A is closed to enrollment.] Part B profiles HIV-infected pregnant women who receive primary or consultative care and a pregnancy outcome following July 1, 1998.

Inclusion Criteria

A patient may be eligible for this study if she:

• Is an HIV-positive woman.
• Is receiving care at a study site during the study period or her infant is receiving care at a study site and whose delivery information is available.
• Had a baby on or after January 1, 1998.