<p>Flu occurs every year, usually
in the winter, which is why it’s
sometimes called seasonal flu.
It’s a highly infectious disease
with symptoms that come on
very quickly.
Colds are much less serious and
usually start gradually with a
stuffy or runny nose and a sore
throat. A bad bout of flu can be
much worse than a heavy cold.
The most common symptoms
of flu are fever, chills, headache,
aches and pains in the joints
and muscles, and extreme
tiredness. Healthy individuals
usually recover within two
to seven days, but for some
the disease can lead to
hospitalisation, permanent
disability or even death.<br></p>