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Respiratory Syncytial Virus (RSV)

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Disease Information

RSV (Respiratory Syncytial Virus) is a seasonal respiratory illness.

  • The people most at risk of severe illness from RSV are older adults and children under 2.
  • There is no vaccine for RSV.
  • The flu and COVID-19 vaccines will not protect someone from RSV.
  • You can protect yourself and your loved ones by covering your coughs and sneezes, washing your hands often, disinfecting common areas touched often, and staying away from others when you are sick, if possible.
  • RSV causes cold-like symptoms, including a runny nose, coughing, sneezing, a fever and a decrease in appetite.

Respiratory syncytial virus (RSV) is the most common cause of severe lower respiratory infection among infants and young children.

  • Symptoms of illness include fever, runny nose, cough and wheezing. When children are first infected with RSV, 25-40% of them will have symptoms of bronchiolitis or pneumonia and up to 2% of children will require hospitalization.
  • In addition to infants who are premature, low birth weight, or with congenital or chronic cardiopulmonary disease, most susceptible are infants from 2 to 4 months when maternal antibodies drop off. By the second year of life, about 90% of children will have been exposed to RSV.
  • No vaccine or effective therapy is available for RSV. Infants and children at risk for severe RSV infection can receive immune prophylaxis with monthly doses of a humanized murine anti-RSV monoclonal antibody during the RSV season.

Disease Reporting

Oregon and Southwest Washington RSV Surveillance

RSV is not a mandated disease for reporting incidence. Oregon follows the CDC definition for onset and offset. Please see RSV surveillance data for more information.


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