good morning. >> caller: good morning. >> host: you were on with julie steenhuysen. >> caller: thank you so much. i wanted to ask ms. julie, i believe that the zika mosquito transfers its virus to humans. i know that mosquitoes beat mosquitoes. so what is it not possible for a mosquito defeat an infected mosquito and contract with the virus in that way passing it on to humans? >> guest: from all of the scientists i talked to that's just not the way it happens. mosquitoes need a blood meal to propagate. it's the females that do the biting and what they're doing is giving the proteins that they need to make more mosquitoes that that's what's going on when they take a blood meal. this particular mosquito is the unique because it's, it only will feed on humans. there are other mosquitoes that carry like west nile, like this asian tiger mosquito, and that will also happily bite your dog instead of you. so it's not so picky. >> host: let's talk more about the regions where we might find these mosquitoes. you said they tend to be, it's a tropical mosquito so they tend to be in the lower part

you are on with julie steenhuysen. >> caller: i would like to ask miss julia that i believe that zika mosquito transfers the virus to humans. i know that mosquitos eat mosquitos a wise and the possible to eat another and to pass on to humans. >> that is just not the way it happens they are in need of blood mitt meal said the females are biting so that is what is going on. so we will all the feed on asian humans there are those that kerry west nile it would bite your dog instead of you. it isn't that picky. >> host: talk about the region's it is a tropical muskego so they are in a the takir part or the more southern part to the northern states also be concerned about this? there were certainly mosquitos bear. >> there are everywhere but you have to have this particular kind. the common mosquito that you remember there are a lot tota do lots of fighting. dave -- biting the make it uncomfortable that there are some states in the north that don't have mosquitos that all. there the concern is addressing issues with travelers that brought the infection back and the interesting thing with zi

discuss the current state of zika in the united states with health and science correspondent steenhuysen julie and whether they're concerned for athletes and visitors as the olympics begin in rio. so, jonathan rauch who talks about his work, how american politics went insane. he'll talk about the division between the white house and congress. be sure to watch friday morning at 7:00 eastern. >> now we hear from dr. americaner zahn of the cent for on set exs and gynecology on the zika rye vuss. this is just over an hour. >> good afternoon, everyone. welcome to t >> goodhe afternoon, everyone, welcome i want to thank each and every one of you for joining us for a timely discussion about the zika virus. and women's health. in recent months we have seen zika transmission escalate in parts of the developing world and here in the united states. according to the centers for disease control and prevention, the mosquito-borne virus has infected over 6000 people in the united states and territories including more than 800 pregnant women. the pentagon has reported that at least 33 american servicemembers

." >> joining us now is julie fro steenhuysen. will give us update s 0o then zika virus in the united states and the effort to prepare for olympic friday rio. good morning. thank you for joining us. >> guest: good morning. thank you for having me. >> host: we have here in the united states, in florida, 15 confirmed cases of zika. can you give us the latest, the update of where things standnd there? >> guest: well, yesterday there was a press conference but there were no new cases. as they -- they have in that one-mile square radius theyisol isolated in miami-dade county, they have cleared out ten blocks, which means they've gone door-to-door and tested people and have said, we don't think zika is in any of these areas. so they're really going systematically to try to identify where the virus is. the biggest challenge is these mosquitoes, zika spread by mosquitoes, and it likes to live right with humans. humans are its only food source so people -- and it can survive in -- like a tiny capsule ofg water, so it's hard to eliminate br