The new study, published in the Open Forum of Infectious Diseases, looked at persistent symptoms experienced by nearly 6,000 patients with Covid both at three- and six-month intervals.
Early in the pandemic, many thought that COVID-19 did not appear to harm the developing fetus because there were so few babies born with COVID-19 infection, she noted.
Using data from two large, long-running study projects in the Puget Sound region one that began in the late 1970s measuring air pollution and another on risk factors for dementia that began in 1994
