RSV
1 of 2abbreviation or noun
plural RSVs
: respiratory syncytial virus
Like many viruses, RSV is spread through contact with an infected person or contaminated objects.—
Nancy Snyderman
Nancy SnydermanRSV, a common respiratory illness that can cause severe breathing problems for babies, has been spreading around the region and the country, and doctors are cautioning about the risks to young children.—Josette Keelor
Josette KeelorRSVs typically emerge in late fall and remain until early spring. However, signs of RSV outbreak began in the middle of April before exponentially increasing by early May.—Winston Henvey
Winston HenveyExamples of RSV in a Sentence
Recent Examples on the Web
Paula Cohen, CBS News, 27 May 2025
These include any virus that can affect the respiratory system, including influenza (flu) viruses, the adenovirus (similar to the common cold), RSV, human metapneumovirus and the coronavirus (COVID-19).
—Daryl Austin, USA Today, 25 May 2025
Additionally, 37,000 people were involved in Moderna’s clinical trials for its RSV vaccine, Chin-Hong said.
—Mary Kekatos, ABC News, 23 May 2025
The company is expecting FDA decisions on a next-generation Covid-19 vaccine by May 31 and on an expansion of approval for its RSV vaccine into younger ages by June 12.
—Meg Tirrell, CNN Money, 1 May 2025
See All Example Sentences for RSV
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Abbreviation or noun
Kennedy has also stalled other overdue recommendations from the panel for respiratory syncytial virus, or RSV, vaccines and meningococcal vaccines.
—Paula Cohen, CBS News, 27 May 2025
These include any virus that can affect the respiratory system, including influenza (flu) viruses, the adenovirus (similar to the common cold), RSV, human metapneumovirus and the coronavirus (COVID-19).
—Daryl Austin, USA Today, 25 May 2025
Additionally, 37,000 people were involved in Moderna’s clinical trials for its RSV vaccine, Chin-Hong said.
—Mary Kekatos, ABC News, 23 May 2025
The company is expecting FDA decisions on a next-generation Covid-19 vaccine by May 31 and on an expansion of approval for its RSV vaccine into younger ages by June 12.
—Meg Tirrell, CNN Money, 1 May 2025
See All Example Sentences for RSV
Cite this Entry
“RSV.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/RSV. Accessed 4 Jun. 2025.
Copy CitationMedical Definition
RSV
1 of 2 abbreviation or noun
: respiratory syncytial virus
Long considered primarily a pathogen of young children, respiratory syncytial virus (RSV) has been recognized as a cause of upper and lower respiratory tract infections in adults.—Harvey B. Simon, Science & Medicine
Harvey B. Simon, Science & MedicineHowever, upper respiratory tract infections caused by RSV tend to last longer than those caused by other common respiratory agents …—Caroline Breese, The New England Journal of Medicine
Caroline Breese, The New England Journal of MedicineRSV
2 of 2 abbreviationLove words? Need even more definitions?
Merriam-Webster unabridged
Share