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now to a posossible breakthrough in the investigation into the killing of rapper tupac shakur. las vegas police confirming today that a search warrant was served at nearby henderson, nevada on monday, but revealing no other details. it comes almost 27 years after shakur, one of hip-hop s biggest rappers was killed in a drive-by shooting. in just 60 seconds, our exclusive look at how the cdc is studying the mosquitos transmitting the first local cases of malaria in decades. plus later, our inside look at china s race to be the world s leader in electronic vehicles. why you may not be able to get them inside thehe u.s. any time soon. just visiting a special secret client. i cacan t say whwho it is, but let t s just sayay she bund her drdream housee and heher dream cacar for roround-the-clclock protecn wiwith progresessive. ohoh. she has another house in malibu. she s been an astronaut, an architect, a ceo. we re in front of her house, dude. i d love to tell you who her boyfriend is,
reporter: inside the insectary at the centers for disease control we have the eggs. we have the larva and then we have the adult mosquitos. reporter: dr. monica paris leads the cdc s 2023 malaria response team, started in response to locally transmitted cases recently discovered in the u.s., one in texas, seven in sarasota county, florida. including a new one announced just today. we notified all the public that live in that immediate area. reporter: how closely is the cdc watching? very closely. very closely. reporter: the cases are locally born, meaning those who are infected have not recently traveled overseas and contracted malaria here at home, something the u.s. has not seen in two decades. why are we seeing these cases now? it s a good question. and we don t have a good answer for absolutely why didn t we see it in 20 years and it came up now. reporter: that s part of the work being done here.
this one was found in texas. reporter: only one kind of mosquito can transmit malaria. here experts are looking at things like mosquito behavior and how they respond to insecticide. it s one of the labs that helped fight the zika and west nile outbreaks. now the cdc, which was founded in 1946 specifically to fight malaria is working closely with local health departments where the latest cases have been found. they process the mosquitos, examine them, process them, and then they re sending them here for us to do the test of the parasite in the mosquito. reporter: she and most experts agree. during the summer outdoor months, insect repellent t is a must,t, but she says the chance of a national outbreak thankfully is very low. because of the history that we ve had, the outbreaks that we have had have been relatively small and contained, as are these. reporter: blayne alexander, nbc news, atlanta. up next here tonight, the great