"Some people say the risk of hiv transmission from a healthcare provider is small."
That statement is True. Because ...
There is <em>NO</em> statement on which public opinion is unanimous.
It can be something as innocuous as "The sky is blue during the day and rain makes the ground wet.", and you will never get 100% of the people to agree on it. There will still be some people who say it's True and others who say it's False.
And plus ... In this particular case, we're talking about a public health question. In today's political and cultural environment, marked by anti-science tendencies, a lot of people think that Science is not being truthful with us, it's all a big conspiracy, we are all being misled, and every individual should have the freedum to decide for himself. So when it comes to talking about something like the risk of HIV transmission, everybody is his own expert. Some will say the risk of transmission from a healthcare provider is substantial, and the rest will say it's small.
So the long sentence in the question is True. Some people do indeed say that.
