Dehydration (feeling lightheaded when standing up) and unable to drink fluids Bloody or brown sputum (blood mixed with mucus and coughed up) Difficulty breathing Turning blue (a sign of poor oxygenation) Worsening fever Return of fever, cough, and other symptoms in the second week after the ons...
Influenza A and B viruses cause seasonal epidemics of disease almost every winter in the United States, while influenza C causes only mild respiratory symptoms and is not thought to cause epidemics, according to the CDC. A fourth type of influenza, type D, is not known to cause illness in ...
Learn about influenza (flu) symptoms, treatment with antiviral drugs, flu shot side effects, and prevention during flu season. Discover when to get the flu vaccine, how long the flu lasts, the contagious period, flu types, and how it spreads.
There are three types of flu viruses: A, B, and C. Type A and B cause the annualinfluenzaepidemics that have up to 20% of the population sniffling, aching,coughing, and runninghigh fevers. Type C also causes flu; however, type C flu symptoms are much less severe. The flu is linked...
Influenza is a viral respiratory infection that causes symptoms similar to, but more severe than, the common cold. Flu symptoms can include sudden onset fever, cough, runny or stuffy nose and severe malaise (feeling unwell). The flu can also sometimes cause vomiting, diarrhea and nausea, (part...
influenza B viral nucleoprotein antigens in nasopharyngeal swab and oropharyngeal swab from individuals with signs and symptoms of respiratory infection. It is intended to aid in the rapid differential diagnosis of influenza A and B viral infections. The test is not intended ...
The NA protein plays a role in replication of A and B influenza types. The M2 protein is essential after cell entry through uncoating of influenza A virus [13]. Influenza incubation lasts 1 to 4 days, then the virus sheds and symptoms appear. Viruses circulate in a host for 5 to 10 ...
Elderly individuals may simply present with fever, lassitude, and confusion without any of the characteristic respiratory complaints. There may be a wide range of symptoms, but the presence of fever plus either sore throat or cough is predictive of positive culture results for influenza in adults....
oropharyngeal swab from individuals with signs and symptoms of respiratory infection. It is intended to aid in the rapid differential diagnosis of influenza A and B viral infections. The test is not intended to detect influenza C antigens. ...
same time, which can lead to novel reassortant influenza viruses; however,influenza Aand B viruses do not naturally reassort gene segments between each other (Krammer et al., 2018). Sign in to download hi-res image Fig. 1.Influenza B proteins, their function and antiviral targets.Schematic ...