http://64188.org/story.php?title=single-dose-of-antibody-typically-infused-24-to-48h-before-a-single-6 Single dose of antibody, typically infused 24 to 48h before a single high dose virus challenge, was sufficient to block infection by a virus challenge, capable of establishing an infection in all untreated animals4,19-21. Humans, however, are usually exposed to much lower doses of virus on several occasions before becoming infected with HIV-122. It is worth noting that prior to the development of Thu, 02 Feb 2023 00:39:11 UTC en