flu symptoms life cycle

  • 5 min read
  • Feb 03, 2020

The Life Cycle of the Flu - Horizon Primary Care
The Life Cycle of the Flu – Horizon Primary Care

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Medically Reviewed by

colds and sharing flu many features: They are both caused by a viral infection, have the same symptoms, and usually can be treated at home. They also usually develop gradually, with certain symptoms appear as the progress of the infection. But there are differences in the onset, severity, and duration of a typical cold or an attack of influenza.

A cold and the flu are both respiratory infections, but they are caused by different viruses. A cold can be caused by over 200 different viruses, while there are only a handful of viruses that cause the flu. flu is usually more intense than ordinary flu. cold symptoms tend to develop gradually, while the flu symptoms can come on suddenly, without warning.

of cold symptoms can vary from person to person, but they generally appear about one to three days after exposure to a cold virus causes. In most cases, the symptoms of the flu will reach a peak around the fourth day and taper off around seven days.

The signs that you have a cold usually develops slowly. The most common flu symptoms include fatigue, sore or scratchy throat, nasal congestion or stuffy and runny nose, followed by sneezing and coughing. Fever with a cold is not typical, but a slight fever is not out of the question.

The mucus discharged by colds can change color during the course of the disease, starts out clear and becomes thicker, yellow, or green. , Where mucus accumulates or drip in the back of the throat, can further aggravate a sore throat or cough.

full life cycle of a cold usually between a week and 10 days. A cold may last longer or more severe in people with immune problems or other underlying health problems.

If the symptoms persist longer than two weeks or keeps coming back, then something else may happen, like ,, or secondary infections.

“Fever is an important sign,” said a professor of preventive medicine, internal medicine, and physiology and biophysics at the State University of New York at Stony Brook, Long Island. Adults with a fever of 102 F or higher and children with fever 103 F or higher should see a doctor.

infectious period for the common cold has its own life span, usually begins a few days before a cold symptoms kick in and continue for several days afterward.

flu symptoms usually begin within 1-4 days after infection. Unlike the common cold, the effects of influenza virus infection can come on very suddenly.

The first signs of flu often fever or chills, accompanied by headache, sore throat, dry cough, runny nose, muscle aches, and fatigue.

As the disease advances, a person may have a warm, flushed skin, watery or red eyes, severe cough that produces phlegm, and nasal congestion. Nausea and vomiting may also occur, especially among children.

A bout of flu usually lasts one to two weeks, with severe symptoms subside within two to three days. However, weakness, fatigue, dry cough, and a reduced ability to exercise can linger for three to seven days.

A 2013 survey conducted by the National Foundation for Infectious Diseases reveals that 41 percent of people think the flu is only transmitted after symptoms start. () That is not true.

An adult infected with influenza can be contagious from one day before symptoms start until five to seven days after becoming sick. Children may continue to spread for more than seven days.

Stay home until the contagious period you have the possibility to pass will help you avoid passing germs to others.

Other simple steps can keep you from spreading the infection to others or take the virus from other people around you at school, at work, or at home.

“The public health practice really basic,” said, a professor in the division of management, policy, and public health and epidemiology at the University of Texas School of Public Health at Houston. “You have to wash your hands, stay home if you’re sick, get enough sleep and eat well.”

When developing, one may be ill for more than one or two weeks, depending on the severity of complications, how quickly a person receiving treatment for it, and how well the patient responds to treatment

-sign a sign of severe complications that should prompt you to seek medical attention include :.

Even in healthy people who are not develop complications, flu can cause symptoms that last for several weeks, including:

With some viral diseases, once you have been infected with or been vaccinated against it, you’re living immune

with flu, however, did not last long immunity.

A study published in March 2017 in the journal Clinical Infectious Diseases lowered immune confirmed during the months after vaccination or infection. ()

Getting vaccinated each year is important to reduce your chances of getting the flu. It takes about two weeks to develop immunity to the flu, and experts recommend getting vaccinated before the flu season is in full swing to ensure adequate protection. Even getting a flu vaccination until the end of January could help protect against the flu, especially if the peak season in February or March.

“I think part of the problem with getting people vaccinated is people do not understand how serious [flu] can,” said Dr. Troisi. “They are confused with the common cold. But if you really have the flu, you can become very ill. “

Additional reporting by

Reference

Sources

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