Table 1.

Characteristics of placentae

	Term seronegative	Term seropositive
Number	15	15
Term	38·5 WA* (37·5–39)	38·5 WA (36–40·5)
Delivery	Programmed caesarean section	2 emergency caesarean sections
		13 elective caesarean sections
CD4 number	–	490 CD4/mm3 (130–778)†
Viraemia	–	1780 copies/ml (< 50–12912)†
Treatment	–	AZT/AZT + 3TC or ddI/AZT + 3TC + protease inhibitor/d4T + 3TC or ddI + protease inhibitor‡

^*Weeks of amenorrhoea.

^†Median value (minimum–maximum).

^‡Different types of treatment followed by HIV-1-seropositive mothers are described and separated by slash bars.

None of the term babies were infected.