HMPV Identified as Key Cause of Respiratory Distress in Children; Emerging Strains A2.2.1 and A2.2.2 Highlight Viral Evolution: Study

Human metapneumovirus (HMPV) has been recognized as a significant contributor to respiratory distress in children, according to a recent study. Researchers have identified two new strains, A2.2.1 and A2.2.2, indicating that the virus is undergoing evolutionary changes. These findings underscore the need for ongoing surveillance and research to better understand HMPV’s impact and adapt treatment strategies accordingly.

Amid rising cases of human metapneumovirus (HMPV) infections in India, and following reports of outbreaks in China, health experts are advising people to remain calm.

A recent study has highlighted the impact of HMPV on pediatric health. Conducted by researchers from the Regional Level Viral Research & Diagnostic Laboratory (RVRDL) and the Department of Microbiology and Pediatrics at the Jawaharlal Institute of Post-Graduate Medical Education and Research (JIPMER) in Puducherry, the study identified new HMPV lineages, A2.2.1 and A2.2.2.

The researchers noted a significant outbreak of HMPV between November 2022 and March 2023, with a 9.6% positivity rate among tested patients. HMPV has been recognized as a major cause of acute respiratory infections in children under five years of age.