Internally, contaminated water and food can spread the problem to our pets. Most are linked to restaurants and delis where less than sanitary conditions exist - from food preparation and storageĪnimals, just like humans, can become infected with parasites and unhealthy organisms. The CDC (Center for Disease Control) cites food as the catalyst behind 80 percent Both plant and animal foods carry parasites,Īnd cleaning and cooking methods often do not often destroy them before ingestion. Tap water has been found to be contaminated with harmful organisms. Our exposure to these sources is constant. Since most of us eat three times a day and drink water frequently throughout the day, Tapeworms, for instance, can reach a length of 6 meters (20 feet).įood and water are the most common sources of parasite and invading organism transmission.
MULTI CELLULAR ORGANISMS are so large they can usually be seen with the naked eye.SINGLE-CELL ORGANISMS tend to be at least 10 times larger than bacteria, or.Than viruses, or at least 1 micrometer (1 millionth of a meter) long. BACTERIA vary widely in size and shape, but tend to be at least 10 times larger.To reproduce they need to commandeer the machinery of the cells they invade. They have so few genes and proteins of their own that in order VIRUSES are the smallest of all infectious agents, averaging about 100 nanometers.The approximate sizes of microbes can be approximated by using the following rule of thumb: Show us a teeming microbial world that we could barely imagine without their help. Using microscopes of varying power, photographers The Parasite Picture Gallery - Life cycles of several very common parasitesĪn extraordinary variety of viruses, bacteria, parasites, and organisms stand ready to attack us and feed
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