Incidents of transmission were discussed with the patient and her mother. The patient, her physician, and her mother decided on conservative management with observation only. Most pregnant women are immune because of previous infection. History of infection is highly predictive of immunity. The incidence of varicella in pregnancy is 5 in 10,000.
Infection is transmitted by respiratory droplets.
Incubation period is 9 to 21 days. Pneumonia may be fatal, but infection is otherwise not more virulent in the absence of pneumonia. C. Effects of Varicella on Pregnancy Outcome 1. Ultrasound finds for fetal infection include polyhydramnios, limb and ventricular abnormalities, fetal hydrops, and liver hyperechogenicities. The rate of spontaneous abortion is increased.