Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Infection of purified trophoblastic cells challenged with primary clinical HIV-1 isolates. HIV-DNA was detected by polymerase chain reaction (PCR) targeting the tat gene. Results are expressed as the number of positive PCR runs relative to all PCR runs performed
*p.i., Post-infection.
†Cells were collected on day 14.
NA, Not available.
