HTB homepage • Conference reports • Articles by subject • Subscribe 19 April 2009 Contents Basic science and immunology CD4 T-cell responses to commensal bacteria in the gut Accelerated aging of the immune system in HIV infection Immune recovery on antiretroviral therapy Regulation gone awry? Elevated levels of regulatory T cells linked To disease progression Viral resistance to a vaginal microbicide in macaques Other news Nations should reject UN drug policy End of the Dr Rath affair in South Africa? On the web BHIVA/CHIVA Consensus Conference: Don’t Forget the Children Hepatology: a clinical textbook Human rights documentation and advocacy: a guide for organisations of people who use drugs Online videos from Treatment Action Campaign, South Africa HTB homepage • Conference reports • Articles by subject • Subscribe