Influenza information from trusted sources:
Flu is a respiratory infection caused by a number of viruses. The viruses pass through the air and enter your body through your nose or mouth. Between 5% and 20% of people in the U.S. get the flu each year. The flu can be serious or even deadly for elderly people, newborn babies and people with certain chronic illnesses. Symptoms of the flu come on suddenly and are worse than those of the common cold. They may include
Influenza is a viral infection that attacks your respiratory system, including your nose, throat, bronchial tubes and lungs.
Seasonal flu (also known as influenza) is a highly infectious illness caused by a flu virus.
The flu is an infection caused by a virus in the upper breathing passages that may also spread to the lungs. Symptoms include fever, headache, general aches and pains, and extreme exhaustion. The flu is a contagious disease in which the influenza virus is spread through the air by the coughing and sneezing of people who are already infected. The virus is inhaled into the lungs where it attacks tissues involved in breathing. People with the flu usually feel sick rather suddenly, with symptoms that may include fever, headache, and feeling very tired. These symptoms are sometimes followed by coughing and a stuffy or runny nose.
The flu is a highly contagious respiratory viral infection. Spread easily by coughing, sneezing, and poor hygiene. Vaccines have been only partially effective because of new and different viral strains that are constantly changing.
Rapid flu test
To determine whether or not you have the influenza A or B, to help your doctor make rapid treatment decisions, and to help determine whether or not the flu has come to your community
Influenza viruses are small RNA viruses that infect many mammals, including humans, birds, and swine. Before 2009, swine influenza predominately affected swine and was not transmitted often or easily to people. Even in the isolated instances in which swine influenza infected people, it had very limited ability to spread from person to person. Most cases were directly linked to contact with swine through farming or at fairs.