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About The Battalion. (College Station, Tex.) 1893-current | View Entire Issue (Nov. 13, 1980)
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By MARK TRIESCH Battalion Reporter A Texas A&M University medical researcher is trying to discover why the vaccine used most widely against tuberculosis doesn’t work in developing countries. Dr. David McMurray, assistant professor of medi cine, is experimenting with the elfects that a lack of protein, zinc, or calorie intake in humans may have on the effectiveness of bacille Calmette-Guerin vaccine (BCG). , The BCG vaccine, which has been used in many parts of the world with great success, appears to have no effect, or a negative effect, in countries where malnutri tion is a problem, McMurray said. “In 1968, the World Health Organization staged a massive vaccination campaign in southern India using the BCG vaccine,” he said. “Of the 300,000 people involved in the test, more individuals who were innocu- lated with the BCG vaccine contracted TB than those who received no innoculation at all.” McMurray feels that the reason for this must be con nected to malnutrition and mineral deficiencies in the test subjects. “It is imperative that we find out why it didn’t work, ” he said. For more than two years, McMurray has been ex perimenting with the BCG vaccine in guinea pigs. “Our guinea pig model is as close as you can come to mimicking the human model, ” he said. McMurray raises the guinea pigs on a diet lacking one key nutrient or a combination of them. He then gives them the same vaccine that people get and observes their progress concerning growth rate, protein in blood serum, and immunity to tuberculosis. “If we can establish some definite patterns in the conditions of the guinea pigs, we may be able to extrapo late what we have learned from them to human popula tions,” McMurray said. McMurray says that he hopes to be able to determine if substituting diets high in protein and zinc will increase body defenses and allow the BCG vaccine to activate the body’s natural immunities. The BCG vaccine is currently not being used'in the United States because the American Medical Associa tion does not feel that it has been completely tested. “People innoculated with BCG show a positive reac tion when they are given a skin test, and this is also a reason it is not used here, said McMurray. McMurray says that TB is still a very serious problem in this country, as well as in the developing nations. “One of every three people in the world is infected with TB,” he said, “and about 30,000 cases a year are being reported in the United States.” McMurray stressed the seriousness of the disease. “Tuberculosis is still a very life-threatening illness, he said, “especially among children.” GREAT MEETNG PL/CE FOR 607 Texas Avenue - 696-1427 (across from Texas A&M) OPEN EVERY DAY Lunch • Dinner • Cocktails King cat captured United Press International NEW YORK — Police officers accustomed to netting hardened cri minals had one netting job Wednes day that wasn’t so routine — captur ing a full-grown lion. The big cat was seen about 11:30 p.m. Tuesday, hiding in a darkened driveway in a section of Queens. A police spokesman said officers on the scene called a special emergency police unit with tran quilizers to calm down the cat and haul it away. Police had no idea how the lion got there or who owned it. Staff photo by Dr. David McMurray uses guinea pigs to test a tuberculosi vaccine for people in developing countries. Current vacd® are not effective in developing countries, and McMurravi testing the theory that the lack of protein in the diet inavt* responsible for the problem. Buffaloes threaten Alaska’s pioneers United Press International DELTA JUNCTION, Alaska — They’ve got this buffalo problem in Alaska. The hulking critters ignore fences SKI CRESTED BUTTE □ 6 days/S nights in a condo with kitchen and fireplace □ 3 days lift tickets □ 3 days ski rental □ Discounted additional ski days □ Ski party □ Optional air, bus or train transportation $169 per person Charter bus option $99 FOR MORE INFORMATION CALL: around the barley farms and themselves on young grain pa farmers are raising on 60, acres in the far-north vaUeyi Delta. Farmers in the Big I conquered innumerableoktaa produce their first crop They cleared the land, strip vegetation to thaw thefrozM erected silos, barns and lioni« planted when the spring sum the snow in their fields. It hasn’t been easy, buttle mers have proved they can crops in the sub-Arctic valley 11owever, they’ve still gotos stacle — the 350 wild bul whose domain the barley fart situated. “They ate, stomped downc led on about $20,000 wortka barley, farmer Dennis Greei The Alaska Department ol and Game protects the state! and only wild bison herd, soal Bill-style shooting is outoftlw tion. 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