Human Metapneumovirus (HMPV) is a respiratory virus belonging to the Pneumoviridae family, first discovered in 2001. 

It shares similarities with the respiratory syncytial virus (RSV) and often causes upper and lower respiratory infections. 

Symptoms resemble the common cold or flu, including cough, fever, and sore throat. Severe cases can lead to bronchitis, pneumonia, or asthma exacerbation. 

Vulnerable groups include children under five, older adults, and those with weakened immune systems. HMPV spreads through respiratory droplets, close contact, and contaminated surfaces. 

Preventive measures include frequent handwashing, wearing masks, and avoiding touching the face.