GENETICS AND HEREDITY

How serious a threat does the evolution of MDR bacteria pose to human health? Dr. Lee Reichman, on of the world’s leading expert on TB, has reffered to MDR-M, TUBERCULOSIS as a “timebomb”. World, 2 billion people (15 million in the United states) are infected with latent M.tuberculosis. Of these, 8.4 million develop active TB and 2 million die every year. Most of these cases of TB are currently treatable with antibiotics. However, imagine the enormity of the crisis if MDR-M. tuberculosis becomes widespread. Should we begin taking steps to avoid such crisis now –before the “timebomb” explodes?

Within the cities of this society, the lakes and their environs changed. Parks sprang up around the lakes, providing places for recreation, Today, people come to the lakes to swim, cycle, skate or jog. Many come simply to walk. In the city of Minneapolis, for example, all sorts of people can be seen strolling by Lake Harriet on a warm summer evening. Some are descended from the native people who settled in this area when the ice sheets melted. Others are described as African, Asian, European, or South American immigrants. These ethnic groups are differentiated by many physical traits- stature, body build, head shape, facial structure, skin colour and hair texture to name just a few. Within ethnic groups, however, people are more similar and within families, they may even look alike.