WebJan 12, 2024 · Overview. Seasonal influenza is an acute respiratory infection caused by influenza viruses which circulate in all parts of the world. There are 4 types of influenza viruses, types A, B, C and D. Influenza A and B viruses circulate and cause seasonal epidemics of disease.. Influenza A viruses are further classified into subtypes according … WebFeb 20, 2024 · The flu is highly contagious. The flu virus is most contagious in the first three to four days after you get it, even if symptoms haven't appeared yet. The flu is no longer contagious once your temperature has returned to normal and you're fever-free for at least 24 hours. This article was reviewed by Tania Elliott, MD, who specializes in ...
Influenza (flu) - Symptoms and causes - Mayo Clinic
WebThis includes our own seasonal flu in humans, which is less deadly but more contagious. For some H3N8 viruses, they are already considered endemic in horses (equine influenza) and dogs (canine ... WebApr 11, 2024 · Canine influenza, more commonly called dog flu, is a contagious respiratory disease in dogs caused by two Type A "canine influenza viruses," according to the CDC. There have been no reports of human infections with canine influenza. It was considered by the CDC "a newly emerging pathogen" in the U.S. dog population in 2005, and is … devonshire balham book
Influenza (Seasonal) - WHO
WebMay 16, 2024 · Is acute bronchitis contagious? Yes. Most of the time, acute bronchitis is caused by a virus, such as the flu (influenza) virus. However, many different viruses — all of which are very contagious — can cause acute bronchitis. Viruses spread mainly from person to person by droplets produced when an ill person coughs, sneezes or talks and … WebThis includes our own seasonal flu in humans, which is less deadly but more contagious. For some H3N8 viruses, they are already considered endemic in horses (equine … WebMay 6, 2024 · Stomach flu is contagious when the organisms that cause stomach flu are spread to uninfected individuals. The timeframe or how long the infected person remains contagious depends on the infecting cause. For example, most common cause of stomach flu is Norovirus. devonshire bake shop premium belgian waffle