A pregnant mother infected with the coronavirus gave birth, and her baby tested positive 30 hours later
- A coronavirus outbreak that originated in Wuhan, China, has killed at least 494 people and infected more than 24,000 since December.
- So far, the Wuhan coronavirus has infected very few children.
- However, on Wednesday, a children's hospital in Wuhan reported that a 30-hour-old infant whose mother has the coronavirus tested positive for the virus, too.
- While it's possible that the coronavirus jumped from mother to child in the womb, one expert says it's more likely the infant caught the illness after birth.
- For more stories go to www.BusinessInsider.co.za.
A 30-hour-old infant born in a Wuhan children's hospital has become the youngest person to catch the new coronavirus.
The newborn's mother is a coronavirus patient, The South China Morning Post (SCMP) reported on Wednesday. The baby's case raises the possibility that new virus could jump from person to person via vertical transmission - when a mother passes a virus to her child in the womb, during childbirth, or via breast milk.
"We should be concerned about the possible new transmission route of the coronavirus," Zeng Lingkong, a senior physician at the Wuhan children's hospital neonatal department, told SCMP.
Lingkong added that pregnant women should stay away from infected patients.
Presently, the infected infant's vital signs are stable, according a report from China state broadcaster CCTV.
An Instagram post from People's Daily shows the infant in an incubator.
However, Stephen Morse, an epidemiologist at the Mailman School of Public Health at Columbia University, told Business Insider than an in-utero transmission is improbably.
"It's more likely that the baby contracted the virus from the hospital environment, the same way healthcare workers get infected by the patients they treat," Morse said. "It's quite possible that the baby picked it up very conventionally - by inhaling virus droplets that came from the mother coughing."
There is no evidence that the two other coronaviruses that have caused major outbreaks, severe acute respiratory syndrome (SARS) and Middle East respiratory syndrome (MERS), are capable of vertical transmission.
The infant probably contracted the virus after birth
Other viruses, like HIV and Zika, can pass from a mother through the placenta and infect her unborn fetus. During labour and delivery, a newborn can also contract HIV through exposure to the infected mother's blood and bodily fluids.
"A lot of the transmission that we saw in HIV was actually not in utero, but exposure of the baby while being born," Morse said.
The infant that got the new coronavirus could have been infected during the birthing process in a similar way, he added. But unlike HIV, this coronavirus is a respiratory infection and doesn't jump from person to person via blood. Instead, it passes via phlegm and saliva droplets.
"For a respiratory virus, it would be pretty unusual," Nancy Messonnier, director of the CDC's Center for the National Center for Immunisation and Respiratory Diseases, said of the possibility of in-utero transmission during a briefing on Wednesday. "This is really the first such report that we've seen"
According to Xinhua, China's state-run press agency, a pregnant woman with the coronavirus gave birth to a healthy child in Heilongjiang province on Monday, Newsweek reported.
Few children have contracted the coronavirus so far
In the weeks between December 31, when the outbreak was first reported, and January 22, no cases were recorded in children below 15 years of age. A recent study published in the New England Journal of Medicine suggested that "children might be less likely to become infected or, if infected, may show milder symptoms" than adults.
A few one-off cases of the virus have been reported among children in the last two weeks, however: On January 26, a 9-month-old girl was diagnosed in Beijing, then a child in Germany whose father was diagnosed with the coronavirus tested positive on January 31.
On Tuesday, health officials in China's Guizhou province reported that a 1-month-old infant had been diagnosed with the virus there.
Still, the coronavirus seems to primarily affect an older population. A recent study of 99 Wuhan coronavirus patients showed that the average age of the infected people was 55.5. Another study of 41 coronavirus cases reported that the median age of those who had died was around 75. Many of those individuals had other health issues like high blood pressure, diabetes, and Parkinson's disease.
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