Public Health

Holes in reporting of breakthrough Covid cases hamper CDC response The agency originally tried to track all infections in vaccinated people, from mild to severe. But in May it decided to focus on the most severe cases. Erin Banco POLITICO

The Centers for Disease Control and Prevention is using outdated and unreliable data on coronavirus breakthrough infections to help make major decisions, such as who gets booster shots, according to three officials with direct knowledge of the situation.

A new study found half of Covid patients had lingering symptoms one year later.

One year after becoming ill with the coronavirus, nearly half of patients in a large new study were still experiencing at least one lingering health symptom, adding to evidence that recovery from Covid-19 can be arduous and that the multifaceted condition known as “long Covid” can last for months.

The study, published Thursday in the journal The Lancet, is believed to be the largest to date in which patients were evaluated one year after being hospitalized for Covid. It involved 1,276 patients admitted to Jin Yin-tan Hospital in Wuhan, China, who were discharged between Jan. 7 and May 29, 2020.