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The Healthy Geezer
Germs are everywhere — even on pets BY FRED CICETTI
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-- Valley, Calif. Indent key Booty Portent Hot temper Corduroy ridge Arm of the Arctic Ocean Desire Sub detector Sunflower State Study all night Pvt.’s superior Salamander Canal feature Acapulco gold “The Greatest” Continental cash “Awesome!” Sweetie Apple computer Memory unit A billion years
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Scatters seeds Texter’s “As I see it” Chow -Unbroken “-- the season ...” Exist Toucan’s feature Tried to hit a homer Veteran’s tale Pond growth
by Donna Pettman
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Crazy Treat badly Available Contented sounds Left the band “-- Rhythm” Actress Mendes Now, on a memo Cuts off Gym unit Egyptian deity
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Pop music’s Bee -Goof up Requests Grad Aesopian ending “Unh-unh” “Evil Woman” gp. Port authority? Designer Chanel Squealer Poetic tribute Drei minus zwei Dwarf tree Expels Camp bed Postal delivery “Othello” villain Ornamental jug Pitch Jai -Band in Boston? Prior night Snooze
Each numbered row contains two clues and two answers. The two answers differ from each other by only one letter, which has already been inserted. For example, if you exchange the A from MASTER for an I, you get MISTER. Do not change the order of the letters.
Is it my imagination, but am I getting fewer fevers than I did when I was younger?
The immune system doesn’t function as efficiently in older adults as it does in younger people. The body’s fever response to infection is not always automatic in elderly people. More than 20% of adults over age 65 who have serious bacterial infections do not have fevers. This brings us to germs, which are defined as microbes that cause disease. Infectious diseases caused by microbes are the leading cause of death. Microbes are microscopic organisms that are everywhere. Some microbes cause disease. Others are essential for health. Most microbes belong to one of four major groups: bacteria, viruses, fungi or protozoa. Bacteria are made up of only one cell. Less than 1% of them cause diseases in humans. Harmless bacteria live in human intestines, where they help to digest food. Foods such as yogurt and cheese, are made using bacteria. Some bacteria produce dangerous poisons. Botulism, a severe form of food poisoning, is caused by toxins from bacteria. However, several vaccines are made from bacterial toxins. Viruses are among the smallest microbes. They consist of one or more molecules that contain the virus’ genes surrounded by a protein coat. Most viruses cause disease. They invade normal cells then multiply. There are millions of types of fungi. The most familiar ones are mushrooms, yeast, mold and mildew. Some live in the human body, usually without causing illness. In fact, only about half of all types of fungi cause disease in humans. Penicillin and other antibiotics, which kill harmful bacteria in our bodies, are made from fungi. Protozoa are a group of microscopic one-celled animals. In humans, proto-
zoa usually cause disease. Some protozoa, like plankton, are food for marine animals. Malaria is caused by a protozoan parasite. You can get infected by germs from other people in many ways, including transmission through the air from coughing or sneezing; direct contact such as kissing or sexual intercourse; and touching infectious material on a doorknob, telephone, automated teller machine or a diaper. A variety of germs come from household pets. Dog and cat saliva can contain any of more than 100 germs that can make you sick. Mosquitoes may be the most common insect carriers of disease. Mosquitoes can transmit malaria. Fleas that pick up bacteria from rodents and can then transmit the plague to humans. The tiny deer tick can infect humans with Lyme disease. We become immune to germs naturally and artificially. Before birth, we received natural immunity from our mothers. Once we are exposed to a germ, we develop natural immunity to it from special cells in our immune systems. Artificial immunity can come from vaccines. Most infections caused by microbes fall into three major groups: acute infections, chronic infections and latent infections. The common cold is an acute infection. Hepatitis C, which affects the liver, is a chronic viral infection. Chickenpox is an example of a latent infection that can emerge many years later and causes a disease called “shingles.” Hand-washing is a simple and effective way to stop the transmission of germs. Health care experts recommend scrubbing your hands vigorously for at least 20 seconds with soap and water. It is especially important to wash your hands before touching food, after coughing or sneezing, after changing a diaper, and after using the toilet. www.LovinLife.com
