The infectious can be caused due to sharing of needles,blood , utensils, combs , towels etc .
Infectious disease are caused by organisms such as bacteria, parasites , virus or fungi.Many organisms live in and on our bodies. They are normally harmless or even helpful. Some infectious disease can be passed by person to person.
Gonorrhea is a infectious disease can be caused by doing unprotected sex . Hepatitis B can be caused by doing unprotected sex , blood transfusion,using the used syringes , by mixing of saliva . AIDS can be spread by blood transfusion, syringes , and doing unprotected sex . Fungal infection can cause by using same towel , combs .
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