PATTAYA, Thailand – A leading Thai virologist has warned that four major respiratory viruses are circulating more frequently this year, while COVID-19 is emerging later than usual but continues to cause mostly mild illness. Professor Dr. Yong Poovorawan, a Royal Society fellow and clinical virology expert at the Faculty of Medicine, Chulalongkorn University, shared an update via his personal Facebook page on the most commonly observed respiratory viruses each year, highlighting COVID-19, influenza, rhinovirus, and RSV. He noted that COVID-19 typically spreads annually starting around May, but this year the rise in infections has been delayed. However, current cases suggest the disease remains generally mild, with no significant increase in severity.
Influenza infections have also begun to rise, with most cases identified as Influenza A (H3N2). Dr. Yong said infections are particularly common among school-aged children and may spread in schools and crowded environments such as dormitories and correctional facilities. Rhinovirus, a common cause of the common cold, circulates throughout the year but peaks during the rainy season. The virus is sensitive to heat and primarily infects the nose and throat, though in some cases it can lead to bronchial inflammation. It is found across all age groups but is most common among schoolchildren.
Respiratory Syncytial Virus (RSV) is now entering its seasonal peak from July through November. The virus can affect all age groups but is especially concerning for infants under one year and the elderly. Dr. Yong noted that RSV infections tend to decline after November. He emphasized that prevention measures remain crucial, especially during seasonal outbreaks. These include regular handwashing, avoiding close contact with infected individuals, and wearing face masks when experiencing symptoms. Maintaining hygiene and consuming clean food are also important in reducing transmission risk. The expert added that these preventive practices are similar to those used during COVID-19 control efforts and remain effective in limiting the spread of respiratory infections. (TNA)
