Louisville Medicine Volume 66, Issue 8 | Page 35

OPINION DOCTORS' Lounge ed with a Wolbachia bacteria then mate with wild females, producing defective offspring which do not survive to adulthood. How the bacteria does this is disputed, and how well it does this is also disputed, with various tri- als ongoing in tropical countries to see if this technique is safe in the wild (not triggering changes in other species), and to see if the mosquitoes will remain susceptible. The Miami-Dade mosquito control authority released over half a billion Aedes Aegypti mosquitoes that were engineered in Lexing- ton, Ky., by MosquitoMate, to combat the spread of Zika, Dengue and Chikungunya. The company website said its products were safe for people and pets and mammals. It claims a more than 80 percent reduction in mosquito populations in treated areas. Ac- cording to the Orlando Sentinel, in 2016 the Florida Health Department had confirmed 1,456 cases of Zika in the whole state. But as of February 2018, only two cases had been confirmed for all of 2017. The deadliest mosquito-borne disease is malaria. Dr. Michael Bonsall, Professor of Mathematical Biology at Oxford, stated a year ago that “A child dies from malaria somewhere in the world every minute of every day.” Combating malaria has become much more complicated since the Southeast Asian strains are showing resistance to our most used medications, the Artemisinin Combination Therapy (ACT). That means the insects that survive the ACT will pass on that trait while the other insects will die. In the first years of this century, more than 3,000 children died per day; if worldwide resistance to ACT is established we will sur- pass those numbers rapidly, including huge numbers of adult deaths. We no longer ever use any drug as monotherapy and the World Health Organization constantly monitors for resistance. The essential questions remain: What species depend on mosquitoes to live? And, which species depend on those species? And, when will we start gene-splicing our future children? The researcher in China, He Jiankui, claims he has done so with ba- bies already, to make them resistant to HIV. But when we know how, will we insist on producing some ideal of the species? That is another order of ethical struggle entirely. Birds eat mosquitoes, and lots of other insects. So do turtles, fish (particularly the mosquito fish), bats, dragonflies, damsel- flies, frogs, tadpoles, beetles and spiders. Dragonflies in particular eat primarily mosquitoes. If there were too few birds, crops would wither and die from the hordes of pests. Even now, up to 10 percent of industrial- ized nations’ crops and up to 25 percent of developing nations’ crops are lost to insect pests. Many animals eat birds; many species of plants depend on birds for pollination and for the spread of seed and for the pro- tection from pests. disease. That’s basically three species. The other 3,500 or so, we must leave alone. I never ever thought I would even think this sentence: “Save Our Mosquitoes.” But if we get good enough to kill only the bad guys, I am go for green, pedal to the metal, flank speed, all hands on deck! Dr. Barry practices Internal Medicine with Norton Community Medical Associates-Bar- ret. She is a clinical associate professor at the University of Louisville School of Medicine, Department of Medicine. In sum, if we remove a huge majority of mosquitoes – if something goes wrong and mosquitoes mate with similar but 2018 not Harding Shymanski quarter page ad GLMS.ai 1 11/1/2018 2:45:39 PM December identical species – we will, potentially, kill off our crops. That’s a doomsday scenario, but look HSC is a company that truly at what is happening focuses on relationships. to our climate right Given their focus on people now. Climate change and relationships, they have gained my trust. My trust is was a doomsday sce- solidified when I witness nario when I was them take the time and young, but at this energy to do the right thing rate, I may yet live for my business. Tax planning to see our coasts for our business has been under water and our thorough and very advantageous. forests constantly on fire. David Braun C M Y CM MY CY Even though there are wonder- ful and lifesaving applications of the CRISPR technique, I believe that we should proceed in a surgical manner with the gene-aided eradication of mos- quitoes that carry Braun’s Nursing Home CMY K Contact Michele R. Graham, CPA, MST 800.880.7800 • www.hsccpa.com Louisville, KY • Evansville, KY Parent of HSC Medical Billing & Consulting, LLC JANUARY 2019 33