In the cases of familial translocation, there is a 2 to 1 excess of maternal transmission.

When compared to studies of maternal transmission, investigations into the role of paternal diets are lacking.

Fewer infected babies are being born now because the drug AZT has been found to prevent maternal transmission.

Type B Spread mainly by blood (transfusions, needle sharing and maternal transmission to fetus) and intimate contact, including sexual intercourse.

Non-A, non-B Spread mainly by blood; intimate contact and maternal transmission are also possible routes.

The symbiotic relationship with aphids began between 160 million and 280 million years ago, and has persisted through maternal transmission and cospeciation.

To combat maternal transmission of AIDS, the state is preparing an educational campaign.

The calf was born after the government had imposed a ban on the feed suspected of causing BSE, leaving maternal transmission as the most likely cause.

"Even if this were to be a case of maternal transmission, it would have no significance for public health".

Paternal transmission results in more prominent anticipation (26-29 years) than maternal transmission (14 to 15 years).