What is flu?
Flu is a contagious respiratory illness caused by influenza viruses that infect the nose, throat, and sometimes the lungs. It can cause mild to severe illness, and at times can lead to death. The best way to prevent flu is by getting a flu vaccine each year.
What is the best definition of a flu pandemic?
An influenza pandemic is an epidemic of an influenza virus that spreads across a large region (either multiple continents or worldwide) and infects a large proportion of the population.
What is flu Short answer?
Influenza is caused by influenza viruses. Two types of influenza, A and B, cause outbreaks in people. Both types can cause mild to severe illness in all age groups. While influenza A viruses infect humans and other ani- mals, influenza B viruses affects only humans.
Where does flu come from?
Answer: Influenza is a virus that’s spread from person to person. It originates, actually, among birds and other animals such as pigs, and new viral strains of influenza come to this country and to Europe from Southeast Asia. That’s the global pattern.
What virus causes the flu?
This illness is different from a cold. While more than 100 different viruses can cause a cold, only influenza virus types A, B, and C cause the flu. Type A and B viruses cause the large seasonal outbreaks.
Is Covid virus in the air?
Spread of COVID-19 occurs via airborne particles and droplets. People who are infected with COVID can release particles and droplets of respiratory fluids that contain the SARS CoV-2 virus into the air when they exhale (e.g., quiet breathing, speaking, singing, exercise, coughing, sneezing).
What is the meaning of coronavirus Covid 19?
Coronavirus disease (COVID-19) is an infectious disease caused by the SARS-CoV-2 virus. Most people infected with the virus will experience mild to moderate respiratory illness and recover without requiring special treatment.
What is the difference between seasonal flu and pandemic flu?
Unlike a seasonal flu epidemic, pandemic flu is a new flu strain that hasn’t circulated in person for a long time, if ever. Because of this, humans have little to no immunity against the virus and it spreads quickly and globally, causing widespread sickness and deaths.
Is the flu considered a disease?
What is the flu? The flu is a common infectious disease caused by influenza (flu) viruses. The flu usually affects a person’s breathing system.
How is a flu spread?
People with flu can spread it to others up to about 6 feet away. Most experts think that flu viruses spread mainly by droplets made when people with flu cough, sneeze or talk. These droplets can land in the mouths or noses of people who are nearby or possibly be inhaled into the lungs.
What kills the flu virus?
Spray disinfectants, like Lysol Disinfecting Spray, kill up to 99.9 percent of fungi, viruses, and bacteria. Simply spray the possibly infected areas, like doorknobs and furniture, and let the spray do its work, making for easy cleaning.
What was the first flu?
It was caused by an H1N1 virus with genes of avian origin. Although there is not universal consensus regarding where the virus originated, it spread worldwide during 1918-1919. In the United States, it was first identified in military personnel in spring 1918.