respiratory syncytial virus
noun
plural respiratory syncytial viruses
1
: a pneumovirus (species Human orthopneumovirus of the genus Orthopneumovirus) that usually causes mild infections of the upper respiratory tract and lungs, that is spread through contact with respiratory droplets, and that is characterized especially by fever, cough, congestion, and runny nose but may progress to bronchiolitis and pneumonia especially in infants, the elderly, and immunocompromised individuals
Respiratory viruses like COVID-19, influenza and respiratory syncytial virus often spread and peak during winter, when people travel for the holidays and spend more time indoors and breathing the same air.—
Jessica Rendall
Jessica RendallRespiratory syncytial virus, or RSV, is a common respiratory virus that usually causes mild, cold-like symptoms in most people. … Infections typically go away on their own in a week or two.—Ema Sasic
Ema SasicNote: Respiratory syncytial virus was initially identified in 1956 and was formerly classified as a paramyxovirus.
called also RSV
2
: the illness caused by respiratory syncytial virus
Symptoms of respiratory syncytial virus are comparable to those of a common cold and COVID-19. Symptoms include runny nose, fever, coughing, sneezing, decreased appetite and wheezing.—Tyler Brown
Tyler BrownAn unseasonably early spike in respiratory syncytial virus cases among young children is pushing some hospitals to capacity.—Vanessa Romo
Vanessa Romocalled also RSV
Examples of respiratory syncytial virus in a Sentence
Recent Examples on the Web
Meanwhile, Pfizer’s vaccine against respiratory syncytial virus, or RSV, saw $356 million in revenue for the third quarter.
—Annika Kim Constantino, CNBC, 29 Oct. 2024
That exceeded analysts’ estimates, helped by its influenza and respiratory syncytial virus shots, which saw earlier-than-anticipated sales.
—Alena Botros, Fortune Europe, 25 Oct. 2024
This autumn and winter are expected to be similar to last year in terms of the circulation of COVID, flu and respiratory syncytial virus, or RSV, Cohen said.
—Rong-Gong Lin Ii, Los Angeles Times, 2 Oct. 2024
Monoclonal antibody treatments can also help prevent severe lower respiratory tract infections caused by respiratory syncytial virus (RSV) in infants and young children.
—Suchandrima Bhowmik, Health, 8 Sep. 2024
See all Example Sentences for respiratory syncytial virus 
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.
Annika Kim Constantino, CNBC, 29 Oct. 2024
That exceeded analysts’ estimates, helped by its influenza and respiratory syncytial virus shots, which saw earlier-than-anticipated sales.
—Alena Botros, Fortune Europe, 25 Oct. 2024
This autumn and winter are expected to be similar to last year in terms of the circulation of COVID, flu and respiratory syncytial virus, or RSV, Cohen said.
—Rong-Gong Lin Ii, Los Angeles Times, 2 Oct. 2024
Monoclonal antibody treatments can also help prevent severe lower respiratory tract infections caused by respiratory syncytial virus (RSV) in infants and young children.
—Suchandrima Bhowmik, Health, 8 Sep. 2024
See all Example Sentences for respiratory syncytial virus
Dictionary Entries Near respiratory syncytial virus
Cite this Entry
“Respiratory syncytial virus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/respiratory%20syncytial%20virus. Accessed 22 Nov. 2024.
Copy CitationMedical Definition
respiratory syncytial virus
noun1
: a pneumovirus (species Human orthopneumovirus of the genus Orthopneumovirus) that usually causes mild infections of the upper and lower respiratory tract, that is spread through contact with respiratory droplets, and that is characterized especially by fever, coughing, congestion, and runny nose but may progress to bronchiolitis and pneumonia especially in infants, the elderly, and immunocompromised individuals
Respiratory syncytial virus is the most important respiratory pathogen causing lower respiratory tract infection in infants and young children.—David W. Smith et al., The New England Journal of Medicine
David W. Smith et al., The New England Journal of MedicineNote: Respiratory syncytial virus was initially identified in 1956 and was formerly classified as a paramyxovirus. Cells infected with the virus typically fuse with adjacent cells to form multinucleate syncytia.
called also RSV
2
: the illness caused by respiratory syncytial virus
… an expanding array of synthetic drugs is being clinically tested against many viral infections. … A handful already have been approved for medical use against herpes, influenza, and respiratory syncytial virus …, a common respiratory infection that usually is mild but can be life threatening to infants in poor health.—Roland K. Robins, Chemical & Engineering News
Roland K. Robins, Chemical & Engineering Newscalled also RSV
Love words? Need even more definitions?
Merriam-Webster unabridged
Share