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Germ Profile: MetapneumovirusThe human Matapneumovirus (hMPV) virus usually causes mild, cold-like symptoms – or no symptoms at all. However, in some people, such as babies under a year old and older people with heart or lung disease, hMPV can lead to serious problems like bronchiolitis or pneumonia. Studies show that almost everyone has been infected by hMPV by age 5. Repeat infections in older children and adults are common and usually less severe. |
SeasonalityIn Utah, hMPV is most active in the winter. Its “season” usually peaks a month or two after RSV, another cold-weather virus. Signs and SymptomsAn hMPV infection can cause cough, stuffy or runny nose, sore throat, and fever. A baby or young child with hMPV may feed poorly or be fussy, inactive, or sleepy. Serious infections can cause vomiting, diarrhea, and breathing problems. And in people with asthma, hMPV can cause a flare-up of asthma symptoms. Infection PeriodSymptoms of hMPV infection typically develop 3 to 5 days after being exposed to and getting infected with the virus. In otherwise healthy infants, the duration of viral shedding is 1 to 2 weeks. How It's SpreadThe hMPV is spread by direct contact with an infected person’s saliva or nasal secretions (usually sprayed out in tiny droplets from a cough or sneeze). The virus can also live on surfaces and materials (tables, handrails, doorknobs, toys, furniture). If you get coughed on or touch a contaminated surface – and then touch your eyes, nose, or mouth – you can get infected. Diagnosis and TreatmentAlthough tests can detect influenza, most diagnoses are made on the basis of symptoms and physical exam. Although testing can detect hMPV, most diagnoses are made on the basis of symptoms. Treatment for hMPV means managing the symptoms until the infection clears. However, bronchiolitis, pneumonia or other possible complications – like an asthma flare up – of hMPV infection may require medication and monitoring. What can I do today?Practice prevention and stop the spread:
Pay attention: When hMPV is going around, pay attention to any symptoms your baby may have. Most cases of hMPV illness are mild, but be on the lookout for more serious symptoms. Call your child's doctor if you notice:
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