References
Seasonal flu, vaccinations and COVID-19
According to Public Health England (PHE) (2019), influenza is an acute viral infection of the respiratory tract. There are three types of influenza virus: A, B and C. Influenza A and influenza B are responsible for most clinical illnesses. Influenza is highly infectious with a usual incubation period of 1–3 days.
For most healthy people, influenza is an unpleasant but self-limiting illness, although it is far worse than the common cold. Its common symptoms include:
However, it has the potential to cause serious disease that could lead to hospitalisation and accounts for over 8000 deaths in the UK annually.
Common symptoms of COVID-19 include: fever, a new and continuous cough, shortness of breath, fatigue, loss of appetite, anosmia (loss of smell) and ageusia (loss of taste).
The current case community case definition of COVID-19 according to PHE (2020a) is the presence of one of the following symptoms:
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