Communicable diseases Flashcards
what is a communicable disease?
- A disease that can be transferred between organisms e.g. HIV
what is a pathogen?
- a microorganism that causes disease.
what are the 4 examples of pathogens?
- bacteria
- viruses
- fungi
- protocista
what is direct transmission?
- when a disease is passed directly between organisms
what are some examples of direct transmission?
- through sexual intercourse
- droplet infection
- needles
- coughing/sneezing
what is indirect transmission?
- when a disease is passed on via an intermediate
what are examples of indirect transmission?
- food/drink
- spores
- mosquitoes
what is an vector?
- an organism that transfers a pathogen between organisms
what are some examples of vectors?
- mosquitos transfer malaria protocista between humans
what are some examples of bacteria?
- Tuberculosis (TB)
- Bacteria Meningitis
- Ring Rot
who does TB affect?
- animals
- humans
- badgers
- cows
Who does Bacteria Meningitis affect?
- Humans
who does Ring rot affect?
- humans
what are some examples of viruses?
- HIV
- influenza
- TMV
who does HIV affect?
- humans
who does Influenza affect?
- animals
who does TMV affect?
- Tobbaco plants
what are some examples of protocista?
- Malaria
- Potato/Tomato Late blight
who does Malaria affect?
- animals
who does Potato/Tomato Late blight affect?
- plants
what are some examples of fungi?
- black sigatoka
- ring worm
- athletes foot
who does black sigatoka affect?
- bannanas
who does ring worm affect?
- cattles
who does athletes foot affect?
- humans