2024年9月18日 · There are four types of influenza viruses: A, B, C, and D. Influenza A and B viruses cause seasonal epidemics of disease in people (known as flu season) almost every winter in the United States.

Learn about the current flu season and find resources related to flu surveillance and past seasons.

La influenza es una enfermedad respiratoria contagiosa provocada por los virus de la influenza. La influenza puede causar una enfermedad leve o grave. La mayoría de los expertos considera que los virus de la influenza se transmiten principalmente a través de las gotitas que se producen cuando las personas con influenza tosen, estornudan o hablan

2024年8月13日 · Flu is a contagious respiratory illness caused by influenza viruses. Flu can cause mild to severe illness. Most experts believe that flu viruses spread mainly by tiny droplets made when people with flu cough, sneeze, or talk. The first and most important step in preventing flu is to get a flu vaccine each year.

2024年8月26日 · Flu can cause mild to severe illness, and at times can lead to death. Flu symptoms usually come on suddenly. People who have flu often feel some or all of these signs and symptoms: fever* or feeling feverish/chills. cough. sore throat. runny or stuffy nose. muscle or body aches. headaches. fatigue (tiredness)

2024年9月17日 · Influenza viruses can be detected in most infected persons beginning one day before symptoms develop and up to five to seven days after becoming sick. People with flu are most contagious during the first three days of their illness.

La influenza (también conocida como "gripe") es una enfermedad respiratoria contagiosa provocada por el virus de la influenza. Este virus puede causar una enfermedad leve o grave y en ocasiones puede llevar a la muerte.

2024年9月9日 · CDC recommends early treatment as soon as possible for people who have flu or suspected flu who are at higher risk of serious flu complications, such as people with asthma, diabetes, or heart disease.

2024年4月1日 · In addition to diagnostic testing for only influenza virus, the Flu SC2 Multiplex Assay is a real-time RT-PCR test that detects and differentiates RNA from SARS-CoV2, influenza A virus, and influenza B virus in upper or lower respiratory specimens.

2024年8月20日 · The single best way to reduce the risk of seasonal flu and its potentially serious complications is to get vaccinated each year, but preventive actions like avoiding people who are sick, covering your cough and washing your hands also can help stop the spread of germs and prevent respiratory illnesses like flu.