Which sources or references can you use to find other information about the flu?
References & Resources
- CDC Public Health Image Library (PHIL)
- Immunization Action Coalition.
- Images of Influenza Viruses.
- Antigenic Characterization.
What is the origin of the influenza virus?
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.
Who discovered influenza B?
isolated influenza B virus in 1936. Also in 1936, Macfarlane Burnet discovered that influenza virus could be grown in embryonated hens’ eggs. This led to the study of the virus’s characteristics and the development and use of inactivated vaccines in the late 1930s and 1940s.
Do you have to report the flu?
All influenza activity reporting by public health partners and healthcare providers is voluntary.
What is the difference between the flu and influenza?
Influenza is a viral infection that attacks your respiratory system — your nose, throat and lungs. Influenza is commonly called the flu, but it’s not the same as stomach “flu” viruses that cause diarrhea and vomiting.
Is influenza A flu?
Influenza (flu) is a contagious respiratory illness caused by influenza viruses that infect the nose, throat, and lungs. Some people, such as older people, young children, and people with certain health conditions, are at higher risk of serious flu complications.
When did flu virus start?
It is impossible to know when an influenza virus first infected humans or when the first influenza pandemic occurred. Possibly the first influenza epidemic occurred around 6,000 BC in China, and possible descriptions of influenza exist in Greek writings from the 5th century BC.
What is Type C flu?
Influenza virus C tends to cause mild upper respiratory infections. Cold-like symptoms are associated with the virus including fever (38–40 °C), dry cough, rhinorrhea (nasal discharge), headache, muscle pain, and achiness. The virus may lead to more severe infections such as bronchitis and pneumonia.
Is influenza A virus?
Influenza A viruses are the only influenza viruses known to cause flu pandemics, i.e., global epidemics of flu disease. A pandemic can occur when a new and different influenza A virus emerges that both infects people and has the ability to spread efficiently among people.
When did Influenza A start?
Full timeline: Hippocrates – 2017
| Year/period | Type of event | Geographical location |
|---|---|---|
| 1889–1892 | Pandemic | Eurasia, Americas |
| 1901 | Scientific development | |
| 1918-1920 | Pandemic | Worldwide; originated in the US, some theories suggest France or other countries |
| 1931 | Scientific development |