microbial infection of the blood

Question 1

Name the main types of microbes causing infection of the blood

Answer 1

Protozoa - plasmodium
Helminths - roundworms, blood flukes
Bacteria - TSS, brucella
Viruses - HIV, ebola
Fungi - yeasts

Question 2

List some factors that aid microbial colonisation

Answer 2

Nutrients (glucose, fats, proteins)
Temperature - 37 degrees
Neutral pH
Oxygen, water

Question 3

List some factors that hinder microbial colonisation

Answer 3

Blood cells
- lymphocytes (T-cell, B-cell, NK cell)
- monocytes (macrophages)
- leukocytes (neutrophils, eosinophils, basophils)
Antibodies
Rapidly moving blood
Blood recirculation through spleen and liver-sinusoids which are lined with phagocytes

Question 4

What is the causative agent of malaria?

Answer 4

Plasmodium

Question 5

What is the transmission route for malaria?

Answer 5

Mosquitos (vector)

Question 6

What is the causative agent for Toxoplasmosis

Answer 6

Toxoplasma gondii

Question 7

what is the transmission route for toxoplasmosis

Answer 7

Undercooked meat
Cat faeces (Mother -> baby)

Question 8

Name some types of microorganisms that can cause septicaemia

Answer 8

bacteria, viruses, protozoa, fungi

Question 9

Name types of blood cells that help prevent septicaemia when microbes enter the blood stream

Answer 9

Lymphocytes, monocytes, leukocytes