Influenza

Influenza, commonly known as the flu, is an infectious disease caused by influenza viruses. Symptoms range from mild to severe and often include fever, runny nose, sore throat, muscle pain, headache, coughing, and fatigue. These symptoms begin one to four (typically two) days after exposure to the virus and last for about two to eight days. Diarrhea and vomiting can occur, particularly in children. Influenza may progress to pneumonia from the virus or a subsequent bacterial infection. Other complications include acute respiratory distress syndrome, meningitis, encephalitis, and worsening of pr

infection caused by any one of several types of swine influenza viruses

mechanism for variation in viruses

genus of viruses

thumb|right|250px|An open vial of Oscillococcinum tablets Oscillococcinum (or Oscillo) is a homeopathic preparation marketed to relieve flu-like symptoms, although it does not provide any benefit beyond that of a placebo.

GISAID (), the Global Initiative on Sharing All Influenza Data, previously the Global Initiative on Sharing Avian Influenza Data, is a global science initiative established in 2008 to provide access to genomic data of influenza viruses. The database was expanded to include the coronavirus responsible for the COVID-19 pandemic, as well as other pathogens. The database has been described as "the world's largest repository of COVID-19 sequences". GISAID facilitates genomic epidemiology and real-time surveillance to monitor the emergence of new COVID-19 viral strains across the planet.

300px|thumb|Performing reassortment with flu viruses Reassortment is the mixing of the genetic material of a species into new combinations in different individuals. The product of reassortment is called a reassortant. It is particularly used when two similar viruses that are infecting the same cell exchange genetic material. More specifically, it refers to the swapping of entire segments of the genome, which only occurs between viruses with segmented genomes. (All known viruses with segmented genomes are RNA viruses.)

genus of viruses in the family Orthomyxoviridae

the disease caused by strains of Influenza A that are enzootic in horse species

an acute respiratory illness with a measured temperature of 38 °C or greater and cough

Pandemrix is an influenza vaccine for influenza pandemics, such as the 2009 flu pandemic. The vaccine was developed by GlaxoSmithKline (GSK) and patented in September 2006.

Virus of influenza type D

influenza occurring in canine animals

Twindemic and tripledemic (or tridemic) were terms used during the COVID-19 pandemic, referring to the possibility of a severe flu season happening alongside an increase in cases of COVID-19 during the fall and winter of 2020 and 2021, as well as respiratory syncytial virus in the winter of 2022. A consequence of a twindemic may be a mixture of two different infections in the same person at the same time. The term twindemic is a portmanteau of "twin" and "pandemic". __TOC__

test for influenza infection

therapy and pharmacy for the common infectious disease

virus formed by recombining genetic material