Researchers reviewed published data to assess HIV-infected children's immune responses to vaccines and found that most children treated with HAART remained susceptible to vaccine-preventable diseases, but responded well to revaccination.

An analysis of data from Denmark finds no associated increased risk of major birth defects for mothers who were exposed during the first trimester of pregnancy to the antiviral drugs acyclovir, valacyclovir and famciclovir, often used to treat herpes simplex and herpes zoster infections, according to a new study.

Vitamin A and beta-carotene supplements are unsafe for HIV-positive women who breastfeed because they may boost the excretion of HIV in breast milk -- thereby increasing the chances of transmitting the infection to the child, a pair of new studies suggest.

The human AIDS viruses originated as viruses of apes and monkeys, respectively, yet little is known about whether or how these invaders adapted to the new genetic "environment" encountered in humans. One group of host genes, collectively known as restriction factors, is thought to influence the ability of such viruses to move between different primate species.

Using a $225,000 microscope and the wisdom of Yogi Berra, researchers have identified the key components of a protein called TRIM5a that destroys HIV in rhesus monkeys. The finding could lead to new TRIM5a-based treatments that would knock out HIV in humans.

Following up a pioneering 2007 proof-of-concept study, biochemists have developed a promising new anti-HIV drug candidate, PIE12-trimer, that prevents HIV from attacking human cells.

The virus that causes AIDS may undergo changes in the genital tract that make HIV-1 in semen different than what it is in the blood, according to a new study.

Current HIV treatments do not eradicate HIV from host cells but rather inhibit virus replication and delay the onset of AIDS. However, new research has yielded an innovative approach to eliminate HIV in host by targeted killing of only HIV infected cells. This approach if successful could lead into an anti-HIV therapy that will eradicate the virus.

The immune system may open the door to recurrent urinary tract infections by overdoing its response to an initial infection, researchers have found.

The vast majority of pediatricians and family physicians nationally are offering the human papillomavirus (also called HPV) vaccine, though fewer physicians are strongly encouraging it for 11- to 12-year-old girls as recommended by national guidelines, according to a survey.