Seattle Mother-Infant COVID-19 study


This study has closed. Published results are publicly available at Frontiers in Immunology:

Martin et al. 2022 "SARS-CoV-2 specific antibody trajectories in mothers and infants over 2 months following maternal infection"

Pace et al. 2022 "Milk from women diagnosed with COVID-19 does not contain SARS-CoV-2 RNA but has persistent levels of SARS-CoV-2-specific IgA antibodies"

UW News Nov 2, 2022 "Infants less likely to contract COVID, develop severe symptoms than other household caregivers"

About the Seattle Mother-Infant COVID-19 Study

Between June 2020 - March 2021, researchers at the University of Washington recruited mothers infected with COVID-19 and their infants for a study of COVID-19 outcomes in families. Comparative data were also collected from mothers who tested negative for COVID-19 following suspected infection, and from breastfeeding mothers with no known COVID-19 exposures. The aims of this study were to examine maternal and infant outcomes following maternal infection

Maternal participants in the Seattle Mother-Infant COVID-19 (SMIC) Study were recruited from the Greater Seattle area; were at least 18 years old; and had an infant or child under 3 years of age. Mothers completed phone interviews and collected breast milk (as applicable) and finger-prick blood spots from themselves and their infants over two months for viral RNA and antibody testing

Funding and contact info:

The SMIC Study was approved by the UW Human Subjects Division and conducted in collaboration with Washington State University, the University of Idaho, and Tulane University. Funding was provided in part by the National Science Foundation (IOS-2031888) and the UW Center for Studies in Demography and Ecology (P2C HD042828)

SMIC Study PI: Dr. Melanie Martin, Department of Anthropology, University of Washington Seattle.

For more information contact: