When a person is ill, they have symptoms. Symptons are some of the effects of the illness that can be detected.
There are mainly two different kinds of illness: infectious illness and non infectious illness.
a) Infectious illness
These are principally caused by micro-organisms or germs that invade the body and cause it harm. Infectious agents are viruses, bacteria, fungi, and protozoa. Viruses can cause flu, rubella, AIDS, coronavirus and hepatitis.
b) Non-infectious illness
This are caused by a malfunction in an organ, such as diabetes, which begins with a problema in the pancreas gland in the digestive system.
I,m going to read it,thank you.
ReplyDeletethanks simon im going to study this and the other post
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