Maternal Infection

The association between maternal infection during pregnancy and children’s diagnoses of autism spectrum disorder and intellectual disability was not causal, according to a Swedish register-based cohort study.

Pregnant women with hepatitis B virus who received tenofovir disoproxil fumarate at least 4 weeks prior to delivery were less likely to transmit the virus to their infants, even those who did not receive immunoglobulin, data show.

Maternal COVID-19 infection during pregnancy was not associated with an increased risk for stillbirth or early infant death, according to research published in Ultrasound in Obstetrics and Gynecology.

Although the risk for vertical transmission of COVID-19 appears rare, a lower-than-expected rate of transplacental transfer of antibodies suggests children born to infected mothers may be at risk for infection, according to a study published in JAMA Network Open.

Researchers have uncovered several prenatal and perinatal factors associated with later psychosis onset, according to results of a systematic review and meta-analysis published in The Lancet Psychiatry.