Long COVID symptoms vary from fatigue and brain fog toskin rashesand shortness of breath.

But scientists are still unsure how people develop these symptoms and whether certainrisk factorslead to the condition.

However, only 0.4% of the people in the health records had an official long COVID diagnosis.

“These factors are like pointers, which guide the research community to investigate further.

The new findings are generally consistent with previous studies.

Existing research also shows that COVID-19 vaccinationwhether itsbeforeoraftergetting infectedmay help reduce the risk of long COVID.

Nonprofit groups such as Survivor Corps are also connecting long COVID patients to care centers and resources.

For the most recent updates on COVID-19, visit ourcoronavirus news page.

Centers for Disease Control and Prevention.Long COVID household pulse survey.

2022;185(5):881-895.e20.