WEBVTT 00:01.534 --> 00:03.003 align:left position:10% line:71% size:80% GEOFF BENNETT: Parts of New England are# on high alert after health officials in## 00:03.003 --> 00:05.672 align:left position:10% line:83% size:80% New Hampshire this week confirmed the first death## 00:05.672 --> 00:10.410 align:left position:10% line:71% size:80% from the rare mosquito-borne virus# known as eastern equine encephalitis. 00:10.410 --> 00:15.715 align:left position:10% line:71% size:80% It brings the total number of confirmed human# infections in the U.S. this year to six,## 00:15.715 --> 00:20.086 align:left position:10% line:71% size:80% including cases in Wisconsin, New Jersey# and the neighboring states of Vermont and## 00:20.086 --> 00:24.290 align:left position:10% line:71% size:80% Massachusetts. Meantime, hundreds of# cases of another illness transmitted## 00:24.290 --> 00:29.796 align:left position:10% line:71% size:80% by mosquitoes -- that's West Nile virus# -- have been confirmed across 33 states. 00:29.796 --> 00:34.968 align:left position:10% line:71% size:80% It paralyzed a teenager in Missouri# and hospitalized Dr. Anthony Fauci.## 00:34.968 --> 00:39.305 align:left position:10% line:71% size:80% The country's former top infectious# disease expert told the outlet STAT:## 00:39.305 --> 00:41.641 align:left position:10% line:83% size:80% "I have never been as sick in my life." 00:41.641 --> 00:43.943 align:left position:10% line:83% size:80% To help us understand more about these viruses,## 00:43.943 --> 00:48.748 align:left position:10% line:71% size:80% the risks they pose and how they spread,# we're joined now by Dr. Peter Hotez,## 00:48.748 --> 00:53.553 align:left position:10% line:71% size:80% dean of the National School of Tropical# Medicine at Baylor College of Medicine. 00:53.553 --> 00:55.588 align:left position:10% line:89% size:80% Welcome back to the "News Hour." 00:55.588 --> 00:57.357 align:left position:10% line:71% size:80% DR. PETER HOTEZ, Baylor College of# Medicine: Thanks for having me, Geoff. 00:57.357 --> 01:02.595 align:left position:10% line:71% size:80% GEOFF BENNETT: We have now seen the first death# from the eastern equine encephalitis v.. 01:02.595 --> 01:07.767 align:left position:10% line:71% size:80% Tell us more about this disease, how it spreads,# and why New England seems to be affected by it. 01:07.767 --> 01:09.436 align:left position:10% line:83% size:80% DR. PETER HOTEZ: Yes, it's called an alphavirus. 01:09.436 --> 01:15.008 align:left position:10% line:71% size:80% And we do see cases periodically, including# human cases and deaths. And it tends .. 01:15.008 --> 01:20.480 align:left position:10% line:71% size:80% disproportionately affect horses. And that's# where the equine part comes into the name.## 01:20.480 --> 01:25.985 align:left position:10% line:71% size:80% It circulates among birds. And there's a# specific mosquito for the birds. And then,## 01:25.985 --> 01:30.723 align:left position:10% line:71% size:80% once it gets hold in the birds, different# mosquitoes can bite and transmit to humans. 01:30.723 --> 01:34.994 align:left position:10% line:71% size:80% So we don't usually see a lot of# cases. I think my big concern is,## 01:34.994 --> 01:39.833 align:left position:10% line:71% size:80% we're starting to see not only the eastern# equine cases, but, as you mentioned,## 01:39.833 --> 01:44.637 align:left position:10% line:71% size:80% the West Nile virus cases. And there's a bigger# problem going on in the Western Hemisphere,## 01:44.637 --> 01:50.643 align:left position:10% line:71% size:80% where there's this big uptick in dengue# cases in Brazil, this other virus Oropouche. 01:51.811 --> 01:57.717 align:left position:10% line:71% size:80% We're seeing an expansion of yellow fever,# geography in Brazil to the fringes of the## 01:57.717 --> 02:03.556 align:left position:10% line:71% size:80% Amazon. So the big picture, I think, is that# we're seeing a general surge in vector-borne## 02:03.556 --> 02:09.062 align:left position:10% line:71% size:80% diseases across the hemisphere. Brazil and# parts of the Caribbean are ground zero,## 02:09.062 --> 02:12.932 align:left position:10% line:77% size:80% but it's starting to filter in,# particularly in Texas and the Gulf Coast. 02:12.932 --> 02:17.871 align:left position:10% line:71% size:80% And this is -- could be a new normal for# us during this time of climate change,## 02:17.871 --> 02:20.273 align:left position:10% line:83% size:80% together with urbanization and other factors. 02:20.273 --> 02:24.911 align:left position:10% line:71% size:80% GEOFF BENNETT: Well, in parts of Massachusetts,# health officials there are telling people to## 02:24.911 --> 02:29.949 align:left position:10% line:71% size:80% avoid outdoor activity between dusk and# dawn. They're conducting pesticide sprays. 02:29.949 --> 02:34.821 align:left position:10% line:71% size:80% How concerned should folks in that region be# and what more can they do to protect themselves? 02:34.821 --> 02:38.758 align:left position:10% line:71% size:80% DR. PETER HOTEZ: Well, the problem is, there's# not much room for error. This is -- has a high## 02:38.758 --> 02:44.330 align:left position:10% line:71% size:80% percentage of encephalitis and fatalities,# perhaps as high as 30 percent of the cases. 02:44.330 --> 02:48.701 align:left position:10% line:71% size:80% So this is definitely not one you want to# get. I think the most important thing is,## 02:48.701 --> 02:53.239 align:left position:10% line:71% size:80% if you do go outside, especially early# in the morning or in the evening,## 02:53.239 --> 02:57.043 align:left position:10% line:71% size:80% you want to be fully covered with# long pants or sweatpants and socks## 02:57.043 --> 03:01.581 align:left position:10% line:71% size:80% and sneakers and a hooded sweatshirt# if you're out in the morning and a hat. 03:01.581 --> 03:05.685 align:left position:10% line:71% size:80% And then, on the exposed parts, make# certain you use a good insect repellent,## 03:05.685 --> 03:09.389 align:left position:10% line:71% size:80% preferably one with a high percentage# of DEET that you put on the dorsal and## 03:09.389 --> 03:12.025 align:left position:10% line:83% size:80% palm or surface of your hands# and around your neck. I mean,## 03:12.025 --> 03:18.798 align:left position:10% line:71% size:80% that's what I do. I like to get my 10,000# steps in and I do walks early in the morning,## 03:18.798 --> 03:24.204 align:left position:10% line:71% size:80% sometimes before sunrise and in the evening, which# is a maximal time when mosquitoes are biting. 03:24.204 --> 03:28.641 align:left position:10% line:71% size:80% And, sometimes, my neighbors who are out in# shorts and T-shirts will look at me like I'm## 03:28.641 --> 03:33.813 align:left position:10% line:71% size:80% a bit nuts. And I use that as a teachable moment.# And I will explain to them, look, you have to be## 03:33.813 --> 03:39.052 align:left position:10% line:71% size:80% really careful because West Nile is accelerating# right now, as well as other vector-borne diseases.## 03:39.052 --> 03:46.326 align:left position:10% line:71% size:80% And there's risk now for ones transmitted by# the Aedes aegypti mosquito, including dengue. 03:46.326 --> 03:51.397 align:left position:10% line:71% size:80% And also we have ones that are arising# from Brazil. So this is the peak time of## 03:51.397 --> 03:55.034 align:left position:10% line:71% size:80% year for vector-borne disease, and it's# probably going to become our new normal. 03:55.034 --> 03:57.403 align:left position:10% line:71% size:80% GEOFF BENNETT: You mentioned West# Nile. Let's talk more about it,## 03:57.403 --> 03:59.906 align:left position:10% line:83% size:80% because we have seen nearly 300 cases across## 03:59.906 --> 04:04.877 align:left position:10% line:71% size:80% the country. What should we know about the# spread and severity of the West Nile virus? 04:04.877 --> 04:08.281 align:left position:10% line:71% size:80% DR. PETER HOTEZ: Well, Texas is getting# hit very hard. So what we usually see in## 04:08.281 --> 04:13.987 align:left position:10% line:71% size:80% the United States is a big peak in Texas# and the adjoining states in the southeast,## 04:13.987 --> 04:17.824 align:left position:10% line:77% size:80% Mississippi and Louisiana, and then# going up into the Great Plains. 04:17.824 --> 04:23.930 align:left position:10% line:71% size:80% And there's North Dakota and Nebraska.# And then you also sometimes see foci in## 04:23.930 --> 04:28.034 align:left position:10% line:71% size:80% New York and New Jersey, where the virus was# first discovered. You have bad years and good## 04:28.034 --> 04:32.071 align:left position:10% line:71% size:80% years for reasons that we don't entirely# understand. 2012 was a terrible year,## 04:32.071 --> 04:36.209 align:left position:10% line:71% size:80% for instance. And this one's looking like# it could be a pretty bad year as well. 04:36.209 --> 04:40.079 align:left position:10% line:77% size:80% And I'm worried that it's going# to become more and more like this,## 04:40.079 --> 04:44.117 align:left position:10% line:71% size:80% that every year is going to become a# bad West Nile year, just like we could## 04:44.117 --> 04:51.824 align:left position:10% line:71% size:80% see dengue coming into the U.S. Gulf Coast and# other diseases transmitted by Aedes mosquitoes. 04:51.824 --> 04:56.562 align:left position:10% line:71% size:80% So the West Nile is transmitted by the Culex# mosquitoes. That's why we do insecticidal## 04:56.562 --> 05:02.869 align:left position:10% line:71% size:80% spraying in the evening and the morning. Aedes is# a little more difficult to control. It requires## 05:02.869 --> 05:06.873 align:left position:10% line:71% size:80% going house to house. And we tend not# to do that much in the United States. 05:06.873 --> 05:08.308 align:left position:10% line:83% size:80% GEOFF BENNETT: Well, if this is the new normal,## 05:08.308 --> 05:10.576 align:left position:10% line:83% size:80% mosquito-borne illness made worse by 05:10.576 --> 05:12.645 align:left position:10% line:83% size:80% climate change, what more should we 05:12.645 --> 05:16.015 align:left position:10% line:71% size:80% be doing to protect ourselves? What# more could the federal government do? 05:16.015 --> 05:17.050 align:left position:10% line:83% size:80% DR. PETER HOTEZ: Yes, it's a good question. 05:17.050 --> 05:22.121 align:left position:10% line:71% size:80% I think we need to up our game in terms of doin.. 05:22.121 --> 05:26.626 align:left position:10% line:71% size:80% our surveillance system in the U.S. is# extremely fragmented. So, for instance,## 05:26.626 --> 05:32.332 align:left position:10% line:71% size:80% if a patient comes into an emergency# room or a clinic and has what kind of## 05:32.332 --> 05:36.302 align:left position:10% line:71% size:80% looks like it could be an arbovirus infection, a# mosquito-transmitted virus infection, they will## 05:36.302 --> 05:43.509 align:left position:10% line:71% size:80% present with fever and rash and headache# and photophobia, being afraid of the light. 05:43.509 --> 05:48.281 align:left position:10% line:71% size:80% And the physician kind of shrugs his shoulders# and say, hmm, maybe it's an arbovirus infection,## 05:48.281 --> 05:51.050 align:left position:10% line:71% size:80% maybe it's something else. And by# the time you get the test back,## 05:51.050 --> 05:55.521 align:left position:10% line:71% size:80% it stays later and sometimes even longer than that# because you have to send it to specialty labs. 05:55.521 --> 06:00.526 align:left position:10% line:71% size:80% So we don't have the point-of-care diagnostics# that we need. And what we really need to do is## 06:00.526 --> 06:06.966 align:left position:10% line:71% size:80% have a detailed map at a county-by-county# level of what's in our particular county. 06:06.966 --> 06:10.403 align:left position:10% line:71% size:80% And so one of the things that we're doing here# at Baylor College of Medicine and our National## 06:10.403 --> 06:14.741 align:left position:10% line:71% size:80% School of Tropical Medicine, we're undertaking a# pretty sophisticated metagenomics project where## 06:14.741 --> 06:21.347 align:left position:10% line:71% size:80% we're doing full sequencing of mosquitoes,# the full genome together with their viruses,## 06:21.347 --> 06:26.786 align:left position:10% line:71% size:80% and also pairing it with wastewater testing, so# we can get that very detailed map of what's there,## 06:26.786 --> 06:32.191 align:left position:10% line:71% size:80% so when a physician sees a patient that they# suspect could have one of these infections,## 06:32.191 --> 06:35.194 align:left position:10% line:71% size:80% they will already know what's in the# flora and fauna of our local area. 06:35.194 --> 06:37.230 align:left position:10% line:89% size:80% And we don't do that currently. 06:37.230 --> 06:40.533 align:left position:10% line:71% size:80% GEOFF BENNETT: Dr. Peter Hotez, thanks, as# always, for your insights. We appreciate it. 06:40.533 --> 06:41.367 align:left position:10% line:89% size:80% DR. PETER HOTEZ: Thank you.