The family library about influenza flu what is influenza flu. Vaccine information statement influenza flu vaccine. Jefferson t, di pietrantonj c, rivetti a, bawazeer ga, al. Goldschmidt, md san francisco general hospital, san francisco, california published online november 30, 2015. Sep 27, 2011 das181 in patients with parainfluenza the safety and scientific validity of this study is the responsibility of the study sponsor and investigators. There are many flu viruses, and they are always changing. Phln introduction the parainfluenza virus is a singlestranded rna virus, a member of the family paramyxoviridae, genus paramyxovirus. Hpivs are a paraphyletic group of four distinct singlestranded rna viruses belonging to the paramyxoviridae family. Pdf influenza is a highly contagious acute viral infection of the respiratory tract.
The virus can cause croup, bronchiolitis, bronchitis and certain types of pneumonia. Swine flu viruses have been reported to spread from persontoperson. It also explains how these diseases can be spread and offers steps to prevent others from getting them. Parainfluenza infection case definition summary public health laboratory network case definitions phln0010 version. Influenza flu is a contagious disease that spreads around the united states every year, usually between october and may. Introduction of asn30asp and thr215ala substitutions in the aduckguangxi532002 backbone conferred increased virulence in mice indicated by survival rate. The flu is a contagious respiratory illness caused by influenza viruses that infect the nose, throat, and lungs. Influenza a h1n1 virus formerly known as swine flu. Human parainfluenza viruses hpivs cause illnesses that affect the respiratory breathing system. Listing a study does not mean it has been evaluated by the u. The flu also spreads when a person touches a surface or an object with flu virus on it and then.
Antiviral agents for the treatment and chemoprophylaxis of. September each year to recommend viruses for inclusion in influenza vaccines2 for use in the. Recommended composition of influenza virus vaccines for use. A h3n2 virus, or influenza b virus or when the influenza virus type or influenza a virus subtype is unknown. The former had pharyngitis and buccal ulcerative lesions. Randomized, placebocontrolled studies of inhaled zanamivir in the treatment of influenza a and b. About 4 days after exposure patients will typically start to develop an abrupt onset of fever, headache, myalgias or dry coughgenerally this presentation will be considered an uncomplicated influenza illness. Influenza a h1n1 influenza a h1n1 virus is a subtype of influenza a virus and was the most common cause of human influenza flu in 2009. Parainfluenza is a group of viruses that causes an infection in the respiratory system and closely resembles the common cold.
The best way to prevent the flu is by getting a flu vaccine each year. The flu produces a melting pot of unpleasant symptoms, including. National influenza centre national influenza centre 197020 introduction influenza is an important health care and public health problem. Influenza is spread primarily through large respiratory droplets or contamination of surfaces. Ficha 3 influenza prevencion by biblioteca eea issuu. Epidemiological factors associated with increased odds for influenza included weeks when. The flu, or influenza, is a viral infection in your respiratory or digestive system. It can cause mild to severe illness, and at times can lead to death. Swine influenza is a respiratory disease of pigs caused by type a influenza viruses that causes regular outbreaks in pigs.
These viruses are closely associated with both human and veterinary disease. Influenza influenza is also called the flu or seasonal flu. Some strains of h1n1 are endemic in humans and cause a small fraction of all influenzalike illness and a small fraction of all seasonal influenza. Human parainfluenza viruses hpivs are the viruses that cause human parainfluenza. This handout describes human parainfluenza viruses common cold and croup and their symptoms. Evite tocar ojos, nariz o boca con manos no lavadas. Das181 in patients with parainfluenza full text view. Each year a new flu vaccine is made to protect against three or four viruses that are likely to. Influenza resistente a dos medicamentos antivirales. Flu virus is spread through coughing and sneezing by people with the flu. Recommended composition of influenza virus vaccines for use in the 2015 southern hemisphere influenza season. Similar to respiratory syncytial virus rsv and human metapneumovirus piv, piv is a member of the paramyxoviridae family of viruses and has an rna genome. Influenza research database strain apuerto rico81934h1n1. Influenza humana a h1n1, su profilaxis y tratamiento.
This handout describes human parainfluenza viruses common. Human parainfluenza viruses are a significant cause of respiratory tract infection especially in children. The worst of your flu symptoms are behind you and you look forward to getting back to your normal activities. The world health organization who convenes technical 1.
People do not normally get swine flu, but human infections can and do happen. Influenza has been linked to an increase in the number of consultations and visits by gps, as well as to an increased workload in health care and nursing. In addition, a 90yearold woman had a flulike illness but antigenic test results were negative for influenza. Parainfluenza refers to a group of viruses that lead to upper and lower respiratory infections. It is an infection that starts in the nose, throat and lungs and spreads to the whole body.
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