Dr. Mohammad Madjid of UTHealth told Newsweek, "We know very well that COVID-19 affects the lung and can cause complications, but this study shows that the cardiovascular system is also affected."
But the study should be "very reassuring for mothers" as none of the babies were severely ill, one professor told Newsweek.
Swabs taken from the nostril and mid-nose of COVID-19 patients picked up the disease in more than 90 percent of cases, according to healthcare company UnitedHealth Group which created the test.
There is currently no treatment or vaccine against COVID-19, which more than half a million people have been diagnosed with according to Johns Hopkins University.
Eighty percent of COVID-19 patients will experience a mild illness, according to the World Health Organization
Almost 444,000 people have been diagnosed with COVID-19 since the outbreak started in late 2019.
The COVID-19 pandemic stated in the Chinese city of Wuhan in late 2019.
"There is no need to worry about the hantavirus," said Yang Zhanqiu, virologist at Wuhan University.
Scientists are racing to find a treatment and vaccine for the new coronavirus.
There is currently no treatment or vaccine for the new coronavirus which causes COVID-19.
The virus is rarely passed between humans and usually originates from rodent waste.
A couple mistook a parasite treatment for a drug which experts hope could be used against COVID-19.
The U.S. has the second highest number of coronavirus cases outside China, according to Johns Hopkins University.
Over 250,000 COVID-19 cases have been confirmed since the pandemic started late last year.
More than 245,000 COVID-19 cases have been confirmed since the pandemic started last year.
There is currently no vaccine or treatment for the virus that causes COVID-19.
Over 200,000 people worldwide have now been infected, according to Johns Hopkins University.
The study ends "any speculation about deliberate genetic engineering," said Josie Golding, epidemics lead at the Wellcome Trust.
Since last December, more than 182,000 cases of COVID-19 have been confirmed worldwide, according to Johns Hopkins University.
There is no evidence the virus can be passed on during pregnancy or in breastmilk, according to The Royal College of Obstetricians and Gynaecologists.
There is currently no vaccine or treatment available for the virus which has killed over 6,500 people according to Johns Hopkins University.
Social distancing is one of the most important ways to prevent the spread of COVID-19, according to the World Health Organization.
Since the COVID-19 outbreak started last year, scientists have been working to create a vaccine to prevent the spread of the bug.
The new coronavirus has spread to every continent except Antarctica.
Older people and those with underlying health conditions as most at risk of serious complications from COVID-19, according to the World Health Organization.
Over 66,000 of the 121,000 people confirmed with COVID-19 have recovered since the outbreak started last December.
Diabetes or coronary heart disease patients are also at greater risk of dying, according to a study.