more on this from sarah dallof. distance between her and zika, relocating to california. >> knowing that i can do something to possibly prevent it, why wouldn't i? >> reporter: in the u.s., 479 women have been reported with zi zika. it is not known in any of miami's home-grown cases are in that number but doctors are calling for alerts for women. this miami per filth clinic has seen an uptick in the number of patients delaying embryo implementation, as well as women freezing their eggs in case they later contract the virus. >> i think it's created a situation that makes patients very uneasy about her fertility, pregnant in general. >> they're fearful. >> absolutely. >> reporter: vanessa moore lives and works in the area where the local infections are suspected of occurring. she had her eggs harvested last week but is waiting to implant them until the temperature drops. >> the decision was made in the last 24 hours. i'm really scared. i really am. >> reporter: no easy choices f a healthy pregnancy and babies. in miam

more on this from sarah dallof. >> reporter: expectant mother edith mancini is putting as much temporarily with her 1-year-old son to california where there have been no reported cases of transmission. >> knowing that i can do something to possibly prevent it, why wouldn't i? that's why we decided that i should leave. >> reporter: in the u.s., 479 women have been reported with zika by the cdc. due to privacy laws it is not known of any of miami's 16 home-grown cases are included in that number, but doctors in the city are fielding an influx of calls from pregnant patients and those hoping to start families. with so little known about zika and long-term effects, fear continues to spread. >> there is a lot of problems because there are so many gaps in the information. >> reporter: this miami clinic has seen an uptick in the women freezing their eggs in case they later contract the virus. >> i think it's created a situation that makes patients very uneasy about her fertility, achieving a pregnancy or being pregnant in general. >> they're fearful. >> reporter: vanessa moore lives and works in

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more on this from sarah dallof. distance between her and zika, relocating to california. >> knowing that i can do something to possibly prevent it, why wouldn't i? >> reporter: in the u.s., 479 women have been reported with zika. it is not known in any of miami's home-grown cases are in that number but calling for alerts for women. this miami per filth clinic has seen an uptick in the number of patients delaying embryo implementation, as well as women freezing their eggs in case they later contract the virus. >> i think it's created a situation that makes patients very uneasy about her fertility, achieving a pregnancy or being pregnant in general. >> absolutely. >> reporter: vanessa moore lives and works in the area where the local infections are suspected of occurring. she had her eggs harvested last week but is waiting to implant them until the temperature drops. >> the decision was made in the last 24 hours. i'm really scared. i really am. >> reporter: no easy choices for those who want nothing more than a health

lucy has been covering -- i understand we're going to florida and catch up with sarah dallof who is - we have sarah? >> reporter: hey, ayman, ku hear me? >> sorry about that. we're having technical problems. i'm glad we connected with you. let's talk about concern officials down there have with this weather pattern developing off the coast of florida. why does anything that brings rainfall to florida pose a potential risk for the fight against zika virus? >> that's a great question, ayman. basically this wave of tropical weather moving through, we don't know if it's a tropical storm, hurricane or bring rain to the region. initially it's going to blow all the mosquitoes out of the sky. after that the moisture will leave behind standing puddles of water just perfect breeding ground for mosquitoes, especially those believed to transmit zika virus. officials urging ahead of the storm and after to dump any standing water around the house this as health officials go door to door in the two areas believed to be responsible -- or local transmissions believes to be occurring in these two small

let's go to sarah dallof. sarah, what more can you tell us about this? >> reporter: hi there, alex.e looking less and less like miami is going to get hit with a tropical storm or hurricane this weekend, but as you can see, the weather is still moving in. we're dealing with winds here right now, with soaking rains expected to arrive later this weekend. now, ahead of those rains, officials here in miami beach have opened all storm drains so they can get that water out as quickly as possible. inspectors are also announcing that they're going to start fining people who don't dump out standing water or cover any containers that could hold standing water in their yard. it's going to be $1,000 for the first offense, $2,000 for the second. basically these officials say all of this weather is just making their job that much harder. >> the big rains are going to probably make us start all over. it's not great news for us, but the heavy rains will flush away the larvacides and re-establish any standing water. as soon as the rains are over, we start all over removing standing water and applying

nbc's sarah dallof is in miami with this story. good morning. >> reporter: as senate democrats push for congress to end its recess and approve emergency zika funding, officials in miami are wasting no time focusing on the possibility of more undiagnosed cases. a door to door battle against zika being waged miami. health officials collecting urine samples from residents in a one square mile north of the city's downtown where four people were believed to be infected by mosquitos. >> boots on the ground is the only way you deal with mosquito control illnesses. >> reporter: the cdc is expecting more cases to pop up. the question is where? the mosquitos suspected of carrying zika have been found across large section of the u.s. scientists looking at a number of factors have identified cities most at risk including miami, new orleans, savannah, charleston and mobile, alabama. >> it's hard to deal with. as a parent, it's concerning. >> i think there are a lot more things i should be worrying about. >> reporter: other than zika? >> for sur