Viruses · Respiratory
RSV
Bronchiolitis, pneumonia and upper respiratory infection
The short answer
RSV is a respiratory virus. Illness can resemble a cold, but infants and some older or high-risk adults may become seriously ill. Bronchiolitis describes an illness pattern, not a synonym for RSV.
Transmission and timing
Coughs, sneezes, close contact and contaminated surfaces can spread RSV. Mild illness in an adult does not predict a mild course in a baby.
CDC ↗Symptoms and risk groups
Symptoms include runny nose, cough and wheeze. A young baby may have no fever; reduced feeding, unusual inactivity or pauses in breathing may be more noticeable.
CDC ↗When to seek help
Seek emergency help for pauses in breathing, blue discoloration or severe breathing difficulty. Inadequate fluid intake or worsening symptoms also need prompt assessment.
CDC ↗For life-threatening symptoms, severe breathing difficulty or altered consciousness, call your local emergency number (112 in Türkiye).
What does the test show?
Symptoms overlap with other respiratory infections. A clinician considers testing alongside the level of care needed; a result does not replace assessment of breathing and feeding.
CDC ↗CDC ↗Care and treatment approach
Severe illness may require oxygen and fluid support in hospital. Care depends on clinical condition; identifying a virus is not a home medication plan.
CDC ↗Prevention and everyday life
Vaccines and preventive antibodies are available for certain groups; they are different products. Eligibility, pregnancy timing and seasonal use must follow current guidance in the relevant country.
CDC ↗Clinical assessment note
Consider prematurity, heart or lung disease and immune suppression. US immunization recommendations must not be presented as Turkish eligibility or reimbursement rules.
CDC ↗Bring a question to your appointment
Which changes in feeding or breathing should trigger reassessment?
International evidence, local decisions
Each source’s country is identified. Vaccine access, reimbursement, isolation and reporting rules vary. Use current guidance and your clinician’s advice in your country; English does not imply UK or US eligibility.
Sources and supporting evidence
- CDC · About RSV ↗
Country context: United States · Source checked: · Source date: 2025-12-30
- CDC · How RSV spreads ↗
Country context: United States · Source checked: · Source date: 2026-02-20
- CDC · RSV in infants and young children ↗
Country context: United States · Source checked: · Source date: 2026-02-20
- CDC · Clinical overview of RSV ↗
Country context: United States · Source checked: · Source date: 2025-08-18
Related topics
Version and change history
- Written by
- Doktorclub editorial team
- Medically reviewed
- Dr. Murat Toktamışoğlu
- Reviewed on
- 14 October 2026
- Next review
- 14 April 2027
- Version
- 1.0.0
- — Medical and language review completed for this language version.
- — First sourced draft prepared; medical review pending.
Doktorclub editorial content · Prepared with AI assistance and reviewed for medical accuracy and language. Information supports, but does not replace, clinical assessment. This guide does not diagnose or create a personal medication plan. Report a content correction · Editorial standards