She still hasn’t returned to her daily three-mile runs with her dog because of shortness of breath. “I’m young, 43, healthy, with no pre-existing conditions, but you can often find me now resting on the couch,” said Ms. Cohn.
“Don’t people want to know about it?” She asked. “Where do people like me go? What happens next? Practitioners in my life have been shocked and are trying to figure out how to move forward, but there are so many questions. And if nobody studies that, there are no answers. “
Another reason not all breakthrough infections are tracked is that they are unlikely to result in further spread of the virus. However, the scientific evidence for this is inconclusive, say some experts.
At Rockefeller University, which regularly tests students and staff for the coronavirus on its New York City campus, breakthrough infections were found in two women who were fully vaccinated and developed robust immune responses after inoculation, according to a study published in The New England Journal of Medicine.
Both vaccinated women, a 51-year-old and a 65-year-old, developed mild symptoms of Covid-19; Viral sequencing revealed that they were infected with variants. “One of the people had an extraordinarily high viral load,” said Dr. Robert B. Darnell, an investigator at the Howard Hughes Medical Institute and senior author of the newspaper.
The patient is not known to have passed the disease on to others, he said. Even so, he said, “She had twice the transmittable viral load in a pindrop of saliva.”
Diana Berrent, founder of the Survivor Corps, a group of people with Covid-19, has called for a national registry of all people with Covid-19 to be set up, including those with mild and asymptomatic cases, in order to collect as much data as possible for future research .