What are Germs?
How many times do we keep yelling at our kids, telling them to wash their hands before eating or cover their mouths while sneezing? Why? We don't want them to catch or spread germs. What are these germs, they ask you, and you hem and haw and mumble something about how they cause diseases and slink away. Perhaps it's time you increased your knowledge.
Germs are tiny living organisms that cause diseases. In fact, they are so tiny that you cannot see them. They can only be seen under the microscope.
There are four kinds of Germs
Humans are made up of millions and
millions of cells, while a bacterium is made up of one single cell.
Once bacteria enter your body, they will get their nourishment from within
your body, and will keep reproducing, causing infection like a sore throat,
cavities, etc. However, all bacteria are not bad. Some types of bacteria
are good for you, and they help keep you healthy. The good bacteria live
in our intestines, and they help the body use nutrition from foods, and
discard the waste matter. So bacteria do an excellent job of garbage disposal!
Similarly, bacteria are essential to make certain nutritious foods like
Unlike viruses and bacteria, fungi
are visible to the naked eye. This is because fungi consist of many cells,
and not just one cell. They are similar to plants, and while they
do not cause illness, they can be uncomfortable and usually cause rash
and itchiness. Athlete's foot is an example of a fungi infection. How do
you get a fungal infection? If you don't shower regularly or if you let
your body remain damp, sweaty and dirty for an extended period. This is
because fungi grow in damp environments.
Viruses are like parasites. They
totally depend on another living being to survive. If a virus doesn't attach
itself to a living being, it cannot survive.
Protozoa are parasites that cause
extreme discomfort and infection. They usually spread through contaminated
water. Tapeworm and roundworm are
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