What are Viruses?
Viruses are too small to see by your naked eye. They can't multiply on their own, so they have to invade a 'host' cell and take over its machinery in order to be able to make more virus particles.
What are Bacterias?
Bacteria are organisms made up of just one cell. They are capable of multiplying by themselves, as they have the power to divide. Their shapes vary, and doctors use these characteristics to separate them into groups.
How do bacteria and virus work?
Bacteria
There are thousands of bacterias and mostly they are harmless or even beneficial. However even good bacterias sometimes finds their way to wrong place that can cause harm. For example some bacteria that lives in our mouth can go to the wrong place and ends up with getting an ear infection. Also some bacteria that ordinarily do not cause disease may do something wrong if the person has a weakened immune system. To cause illness in humans, bacteria need to be able to gain access to the human body, reach their unique place within the body and multiply there. The human body has developed several strategies to make life as difficult as possible for disease-causing or pathogenic bacteria, but bacteria have also learned how to break down our defenses.
Virus
Viruses are too small to see by your naked eye. They can't multiply on their own, so they have to invade a 'host' cell and take over its machinery in order to be able to make more virus particles.
What are Bacterias?
Bacteria are organisms made up of just one cell. They are capable of multiplying by themselves, as they have the power to divide. Their shapes vary, and doctors use these characteristics to separate them into groups.
How do bacteria and virus work?
Bacteria
There are thousands of bacterias and mostly they are harmless or even beneficial. However even good bacterias sometimes finds their way to wrong place that can cause harm. For example some bacteria that lives in our mouth can go to the wrong place and ends up with getting an ear infection. Also some bacteria that ordinarily do not cause disease may do something wrong if the person has a weakened immune system. To cause illness in humans, bacteria need to be able to gain access to the human body, reach their unique place within the body and multiply there. The human body has developed several strategies to make life as difficult as possible for disease-causing or pathogenic bacteria, but bacteria have also learned how to break down our defenses.
Virus
- A virus particle attaches to a host cell.
- The particle releases its genetic instructions into the host cell.
- The injected genetic material recruits the host cell's enzymes.
- The enzymes make parts for more new virus particles.
- The new particles assemble the parts into new viruses.
- The new particles break free from the host cell.