Current seasonal human flu A viruses that circulate among people are different from a novel flu A virus that has caused human infections. There are novel flu viruses that circulate in animals.
What are the 4 types of influenza?
Influenza A and B are the most common types of flu in the US.
What does novel H1N1 mean?
There is a novel H1N1 (swine flu) that affects humans. The first case of the new virus was in the United States. The same way that seasonal flu viruses are spread, this virus is spread from person to person.
What kind of disease is the novel H1N1 flu?
There is a summary. The H1N1 strain of the flu is the main cause of the swine flu. H1N1, also known as the swine flu, is one of several flu viruses that can cause the seasonal flu. The seasonal flu and the H1N1 flu have similar symptoms.
Which influenza type is deadliest?
The H1N1 flu epidemic of 1918 killed 50 million people worldwide, including 675,000 people in the US. There was a high death rate for healthy adults between the ages of 15 and 34.
Is H1N1 the same as flu A?
The hemagglutinin (H) and neuraminidase (N) are found on the surface of the flu vaccine. Each of the H and N subtypes has a number. The H and N flu have the same type of virus.
How is H1N1 different from the flu?
Symptoms of the flu include a cough, a sore throat, headaches, and chills. There are some symptoms of H1N1 flu. If you get these symptoms, stay home and limit contact with other people until at least 24 hours after you have stopped using medicine.
What’s the difference between swine flu and H1N1?
The swine flu is similar to the flu that affects pigs. There is a lung disease in pigs that is caused by the virus. Humans are exposed to swine flu.
Is influenza 4 contagious?
The flu can cause a lot of problems. It is possible to spread it from a day before you feel sick to the next. It can be more for young kids than for adults.
What is the difference between influenza A and influenza B?
Pandemics can be caused by the spread of flu A from animals to humans. Humans are the only ones who can spread Influenza B. Influenza B is more severe in children than it is in adults. In the population as a whole, the flu is less severe.
What are the 2 types of influenza that overwhelm humans?
The flu season is when the flu A and B viruses are most prevalent. Antigenic drift and antigenic shift are the two ways in which a flu virus can change.
What is the difference between influenza A and influenza B symptoms?
The most common symptoms are a sore throat, a cold, and fatigue. The severity is the main difference between them. Symptoms of type A are more likely to result in hospitalization or death.