HIV Statistics - What am I missing?

[Am_I_Simply_Making_Myself_Sick]

Dr. HHH says minimal risk of female to male transmission.  CDC says 1/2000 chance per incident for male insertive unprotected sex.  

However, for the year 2004, the CDC says of the 42,500 people contracted HIV, 5,149 of them were males that contracted it through heterosexual contact.  

(see http://www.cdc.gov/hiv/topics/surveillance/basic.htm)

I also read that 5% of the roughly 1 million in the U.S. with HIV contracted it through hetero contact.  That's 50,000 people!  Seems more than 1/2000 or 1/1000 per incident?

I was doing okay (brief (3 minutes) insertive unprotected sex) until I saw these numbers.

These numbers don't seem to add up! Any insight?

[monkeyflower]

Uh, 50,000 is *nothing* when you consider there are more than 300,000,000 people in the US...

[robespierre]

Doc would say that many (most?) of that declare to be hetero, are really omo or bi-sex or drug users, and don't say it.
But, in hte statistics, they are classified as hetero at all.

[Am_I_Simply_Making_Myself_Sick]

300 million people in the U.S., but 1 million have HIV.  50,000 heteros of the 1 million with HIV seems very high.

[monkeyflower]

Five percent *of the HIV infected population* seems high to you? Seriously?

[xworriedx]

How many of the 50,000 are female? ..and also how many of the 50,000 got it from a one time encounter?

[Am_I_Simply_Making_Myself_Sick]

It says almost 60,000 males another almost 100,000 women from hetero contact (see site above).  There are no statistics about one time contact.