Why is hepatitis more infectious than hHIV?
I am assuming that you are referring to Hepatitis C. There are about four million people in the United States alone that have Hepatitis C, many of which do not even know that they have it and it is spread in the same ways that HIV is spread, most commonly through blood. It is estimated that there is a little over one million people in the United States who have HIV. This is quite a significant difference and one of the reasons why Hepatitis C is spread more, there are more people who unknowingly have it.
Hepatitis C can also live for a short time outside of the body, up to four days. HIV is not capable of this.
Hepatitis B and HIV are spread in the same way which is through contact of body fluids during sexual intercourse; by infected blood; from the mother to the baby during birth; by sharing needles and piercing instruments and by many other ways like those mentioned.
Hepatitis B is up to 100 times more infectious than HIV. This is due to the fact that the Hepatitis B virus can survive outside the human body for at least a week and still remain infectious. On the other hand HIV once outside the body is no longer infectious after a few hours.