Diseases Flashcards
What is a communicable disease?
A disease/illness that can be spread from one organism to another
How is measles spread?
Inhalation of droplets produced by infecting people when sneezing and coughing
What are the symptoms of measles?
- fever
- red skin rash
- spots
- young children are vaccinated to immune them
How is HIV spread?
- sexual contact
- sharing body fluids
What are the symptoms of HIV?
- flu like symptoms
= virus attacks the body’s immune cells which leads to AIDS
How is tobacco mosaic virus spread?
- direct contact of plants with infected plant materials
- animal and plant vectors
- soil
What are the symptoms of tobacco mosaic virus
Mosaic pattern of discolouration on the leaves
Reduces plants ability to photosynthesis
How is salmonella spread?
By bacteria or on food that is being digested
How can salmonella be prevented and treated?
Poultry are vaccinated
What are symptoms of salmonella food poisoning
Fever, abdominal cramp, vomiting, diarrhoea
How is gonorrhea spread?
Sexually transmitted
What is the symptoms, how can it be prevented/treated - gonnohrea
Symptoms - thick yellow or green discharge
Prevention - antibiotics
What type of communicable disease is salmonella & gonorrhoea?
Bacteria
How is rose black spot disease spread and how can it be prevented/treated?
Spread by water + wind
Prevents = affected leaves removed n destroyed
What are the symptoms of rose black spot?
Purple black spots on leaves
Reduces plant’s ability to photosynthesise
