Some people who recover from the coronavirus might be left with '20 to 30%' less lung function - Hong Kong doctors

People who recover after being infected with the novel coronavirus can still be left with substantially weakened lung capacity, with some left gasping for air when walking quickly, doctors in Hong Kong have found.

The Hong Kong Hospital Authority made the findings after studying the first wave of patients who were discharged from the hospital and had fully recovered from COVID-19.

Out of 12 people in the group, two to three saw changes in their lung capacity.

"They gasp if they walk a bit more quickly," Owen Tsang Tak-yin, the medical director of the authority's Infectious Disease Centre, told a press conference Thursday, according to the South China Morning Post.

"Some patients might have around a drop of 20 to 30% in lung function" after full recovery, he said.

Tsang added, however, that patients can do cardiovascular exercises, like swimming, the improve their lung capacity over time.

While it's too early to establish long-term effects of the disease, scans of nine patients' lungs also "found patterns similar to frosted glass in all of them, suggesting there was organ damage," Tsang said, according to the Post.

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