The child was healthy and showed no signs of the contagion, and was vaccinated at once.

Although it remained with its mother all through the sickness, it continued well, with the exception of the ninth day, when a slight fever due to its vaccination appeared.
The mother made a good recovery, and the author remarks that had the child been born a short time later, it would most likely have been infected.
Ayer reports an instance of congenital variola in twins.

Chantreuil speaks of a woman pregnant with twins who aborted at five and a half months.

One of the fetuses showed distinct signs of congenital variola, although the mother and other fetus were free from any symptoms of the disease.

In 1853 Charcot reported the birth of a premature fetus presenting numerous variolous pustules together with ulcerations of the derm and mucous membranes and stomach, although the mother had convalesced of the disease some time before.