Task: Answer Verification
Input (English): Question: Do antigen-presenting cells represent targets for R5 HIV-1 infection in the first trimester pregnancy uterine mucosa?
Answer: The presence of HIV-1 target cells in the decidua in vitro and the low rate of in utero mother-to-child transmission during the first trimester of pregnancy suggest that a natural control occurs in vivo limiting cell-to-cell infection of the placenta and consequently infection of the fetus.
Output (English): yes