HIV can avoid the powerful drugs that sufferers take to destroy it by hiding in their guts, scientists have discovered. The scientists found that the virus that causes Aids took hold in intestinal tissue of patients receiving antiretroviral therapy (ARV). There it continued to replicate and suppress the immune system even though blood samples showed that the drugs were working. The scientists from California University said that results of their three-year study, published in the Journal of Virology, showed HIV treatments needed re-evaluation. Professor Satya Dandekar, who led the study, said that, while ARV could be quite successful in reducing...