A positive result for influenza B virus means that a person has been infected with the virus. Influenza B is one of the two types of influenza viruses that commonly cause illness in humans. The other type is called influenza A.
Symptoms of Influenza B Virus
The symptoms of influenza B virus are similar to those of influenza A virus. They include fever, cough, sore throat, headache, chills, muscle aches, and fatigue. In some cases, people may also experience diarrhea and vomiting.
Complications of Influenza B Virus
In some cases, influenza B virus can lead to more serious complications such as pneumonia, ear infections, sinus infections, and dehydration. It can also worsen existing medical conditions, such as asthma or heart disease.
Treatment of Influenza B Virus
Treatment for influenza B virus typically includes rest, fluids, and over-the-counter medications to relieve symptoms. In some cases, a doctor may prescribe antiviral medications, such as oseltamivir (Tamiflu) or zanamivir (Relenza), to reduce the severity and duration of the illness.
Prevention of Influenza B Virus
The best way to prevent infection with influenza B virus is to get the annual flu vaccine. Vaccination is particularly important for those at high risk of severe complications from the virus, such as pregnant women, young children, and people with certain chronic medical conditions. It is also important to practice good hygiene, such as frequent handwashing and avoiding close contact with sick people.