All four cases of Mycoplasma pneumoniae or "walking pneumonia" in the Philippines are "not new" and have already recovered, according to the Department of Health (DOH) on Wednesday.

In a statement, the Health ministry clarified earlier reports on the cases of influenza-like illness (ILI) in the country in 2023.

"Only 4 (0.08%) of the confirmed influenza-like illnesses cases from January up to November 25, 2023 were due to M. pneumoniae or 'Walking Pneumonia'. All these cases have recovered. More than half of confirmed ILI cases were due to other well-known and commonly detected pathogens. We have medicines that can treat M. pneumoniae; and we can easily prevent its transmission," the statement read.

The agency also emphasized that mycoplasma pneumoniae is a known and common pathogen and has been previously detected in the country using various methods.

DOH also gave more details on the symptoms of walking pneumonia.

"Mycoplasma pneumoniae is a known and common pathogen. It causes different infections, including colds and pneumonia. It is one of the influenza-like illnesses (ILIs), which presents as fever, sore throat, and cough. Younger children may have cold-like symptoms. While all age groups can be affected, those with weak immune system and living in closed settings are at higher risk for more severe disease. Filipino doctors and medical personnel in our hospitals can treat M. pneumoniae and have the medicines for it," it said.

DOH said the transmission of Mycoplasma pneumoniae and other respiratory pathogens can be prevented "through regular handwashing, masking, ensuring adequate ventilation, and updating our vaccinations."

Health Secretary Ted Herbosa on Tuesday assured the public that there is no outbreak of "walking pneumonia" in the Philippines.

The Mycoplasma pneumoniae or ‘walking pneumonia,’ as described by the World Health Organization (WHO), is a common bacterial infection that normally affects younger children and can be treated with antibiotics.