Respiratory Syncytial Virus
Respiratory syncytial virus (RSV) is a common virus that causes mild, cold-like symptoms. It is spread through coughing and sneezing and touching contaminated surfaces. Most children get RSV by the time they are two years old. In most cases, RSV is mild and children recover. Antibiotics are not used to treat RSV because it is a virus, not a bacteria.
However, in children with compromised immune systems, adults 65 years or older, and premature babies, RSV can cause severe lung infections, including pneumonia. Common symptoms include fever, chills, headache, general aching, tiredness, and a loss of appetite.