Specific Purpose: I want the students to learn how to prevent influenza
Thesis Statement: Influenza can be prevented with simple preventive measures
Influenza, more commonly known as the flu, is one of the most common infectious diseases. It can be deadly.
The flu affects everybody. It is a source of illness and death every flu season, which runs roughly through the fall and early winter months. Although for most people the infection is mild, since the early 1970s, researchers estimate that influenza has caused more than 40,000 deaths in the United States every year, according to the American Journal of Epidemiology.
The flu virus can be spread when the virus is sneezed or coughed into the air. Although simply being in a room with someone who has the flu is not a major risk factor. Infection occurs when a person has direct contact with the virus
A.There are several factors that influence the risk of being infected:
Level of immunity against a particular strain of influenza
Overall health of the person's immune system
Overall nutritional and general health status
Nutrition has recently been singled out as the most important factor in resistance to influenza infection
BThe incubation period for the flu ranges from about 18 to 72 hours, depending on the strain and the effectiveness of the body's immune response. The weaker the person's immunity, the sooner it produces noticeable symptoms.
Symptoms of influenza include a high fever and sharp headache, and they often come on suddenly. The severity of these symptoms often peaks by the second day. After that, the fever usually subsides and symptoms begin to appear in the respiratory tract.
People who have weak immune systems, such as the elderly, sick people, or young children, cantherefore be quickly overwhelmed by...