Search results
23 lut 2023 · Learn about the signs and symptoms of type A influenza, a contagious viral infection that can cause widespread flu outbreaks and serious complications. Find out how to diagnose, treat, and prevent this infection with vaccinations and antiviral medications.
3 paź 2023 · Learn about seasonal influenza, a common respiratory infection caused by influenza A and B viruses. Find out how to recognize the symptoms, protect yourself and others with vaccination, and treat the disease if needed.
28 cze 2018 · Influenza is an infectious respiratory disease that, in humans, is caused by influenza A and influenza B viruses. This Primer discusses the biological features of influenza viruses, their...
17 wrz 2021 · The influenza virus is an enveloped virus belonging to the Orthomyxoviridae family. There are four genera of influenza virus that infect vertebrates: influenza virus A, B, C, and D which are distinguished based on antigen differences in their matrix protein and nucleoprotein.
Influenza A virus and influenza B virus circulate in humans and cause seasonal epidemics, and influenza C virus causes a mild infection, primarily in children. Influenza D virus can infect humans but is not known to cause illness.
Learn about the flu, a viral infection of the respiratory system that can cause fever, cough, headache and muscle aches. Find out how to prevent, treat and complications of the flu, and when to see a doctor.
Annual seasonal influenza epidemics of variable severity caused by influenza A and B virus infections result in substantial disease burden worldwide. Seasonal influenza virus circulation declined markedly in 2020–21 after SARS-CoV-2 emerged but increased in 2021–22.
