IC02 265
Understand the causes of infection
Outcome 1
1. Identify the differences between Bacteria, Viruses, Fungi and Parasites
A. Bacteria.
A bacterium is a living thing made up of a single cell (unlike fungi that are multi celled). They are not plants or animals. Because they are single celled they very small, however they have a fast multiplication rate which leads to normally millions of them together.
B. Viruses.
Viruses are small (too small to be seen under a light microscope), and infectious, they can only replicate inside of living cells of organisms (like bacteria, fungi, animals and plants). These are the connecting link between living and nonliving things.
C. Fungi
These are living organisms with many cells (with a nucleus) also known as Eukaryotes. In comparison bacteria is single celled with no nucleus (Prokaryote). There are two major types of fungi that cause infections, these are yeasts and dermatophytes.
D. Parasites
A parasite is an organism that lives of another organism. It gets it food from the host and can often cause disease in humans. Some of the diseases are easily treated and some aren’t. These parasites can be bacteria, fungi, plants, animals etc... Through this exchange between parasite and host they will usually weaken their host but not kill them.
2. Identify common illnesses and infections caused by Bacteria, Viruses, Fungi and Parasites
A. Bacteria
Tuberculosis (TB), MRSA, food poisoning, bronchitis, ear infections, tonsillitis, pneumonia, gonorrhea, syphilis, chlamydia. All of this normality ends up with the person getting a fever and other symptoms.
B. Viruses
Flu, common cold, stomach flu, pneumonia, ear infections, HIV/AIDS, herpes, warts.
C. Fungi
Valley fever, athlete's foot, ringworm, yeast infection
D. Parasites
Worms, schistosomiasis, malaria, sleeping sickness (trypanosomiasis), leishmaniasis
3. Describe what is meant by " infection" and "colonisation"
Infection happens when a body is invaded by, viruses, bacteria and
Outcome 1
1. Identify the differences between Bacteria, Viruses, Fungi and Parasites
A. Bacteria.
A bacterium is a living thing made up of a single cell (unlike fungi that are multi celled). They are not plants or animals. Because they are single celled they very small, however they have a fast multiplication rate which leads to normally millions of them together.
B. Viruses.
Viruses are small (too small to be seen under a light microscope), and infectious, they can only replicate inside of living cells of organisms (like bacteria, fungi, animals and plants). These are the connecting link between living and nonliving things.
C. Fungi
These are living organisms with many cells (with a nucleus) also known as Eukaryotes. In comparison bacteria is single celled with no nucleus (Prokaryote). There are two major types of fungi that cause infections, these are yeasts and dermatophytes.
D. Parasites
A parasite is an organism that lives of another organism. It gets it food from the host and can often cause disease in humans. Some of the diseases are easily treated and some aren’t. These parasites can be bacteria, fungi, plants, animals etc... Through this exchange between parasite and host they will usually weaken their host but not kill them.
2. Identify common illnesses and infections caused by Bacteria, Viruses, Fungi and Parasites
A. Bacteria
Tuberculosis (TB), MRSA, food poisoning, bronchitis, ear infections, tonsillitis, pneumonia, gonorrhea, syphilis, chlamydia. All of this normality ends up with the person getting a fever and other symptoms.
B. Viruses
Flu, common cold, stomach flu, pneumonia, ear infections, HIV/AIDS, herpes, warts.
C. Fungi
Valley fever, athlete's foot, ringworm, yeast infection
D. Parasites
Worms, schistosomiasis, malaria, sleeping sickness (trypanosomiasis), leishmaniasis
3. Describe what is meant by " infection" and "colonisation"
Infection happens when a body is invaded by, viruses, bacteria and