In an editor’s note, ProMed said: “This report suggests a widespread outbreak of an undiagnosed respiratory illness … It is not at all clear when this outbreak started as it would be unusual for so many children to be affected so quickly. The report does not say that any adults were affected suggesting some exposure at the schools.”
The alert added that more definitive information is needed to determine the cause and scope.
However, the outbreak could be linked to Mycoplasma pneumoniae, also known as “walking pneumonia”, which is reportedly surging as China enters its first winter without its stringent Covid-19 lockdown in place.
Other countries, including the UK and US, saw similar surges in diseases such as RSV and flu once pandemic restrictions were lifted, as years of suppressed circulation hit immunity among the population.
Symptoms of walking pneumonia – which generally affects young children – include a sore throat, fatigue, and a lingering cough that can last for weeks or months. In severe cases, this can eventually deteriorate into pneumonia.
Last month, local media reported that hospitals nationwide were seeing an increase in infections, with clusters of cases often emerging in schools and nurseries.
“It is the first wave of mycoplasma pneumoniae infections since most Covid-19 containment measures were lifted at the beginning of this year,” Zhou Huixia, director of the children’s medical centre at the Seventh Medical Center of the Chinese PLA General Hospital, told China Daily.
“The wave has appeared particularly ferocious since the National Day holiday in early October,” she said. “Compared to previous years, we found more patients with mixed infections, drug resistance and lobar pneumonia.”
Sarah Carter is a health and wellness expert residing in the UK. With a background in healthcare, she offers evidence-based advice on fitness, nutrition, and mental well-being, promoting healthier living for readers.