Communicable Disease(s) Flashcards
What is a communicable disease?
A disease that can be transmitted from person to person and is caused by a pathogen.
Name four types of pathogen.
Bacteria, Virus, Fungus and Protist
How are pathogens spread?
Airborne droplets
Physical/Unprotected sexual contact
Unprepared food and unwashed hands
Water
Animal/Insect bites
How do bacteria harm us?
Divide rapidly and produce toxins.
How do viruses make us ill?
Invade and multiply inside our cells which then fill up and eventually burst. The virus then spreads around the body.
How are diseases spread around the body?
Through the blood/bloodstream
Summaries measles.
Caused by a virus
Symptoms: Fever and red skin rash
Spread: Airborne droplets
Treatment: Vaccination
Describe HIV
Caused by a virus
Symptoms: Starts as a flu and
weakens the immune system overtime
Spread: Unprotected sexual contact
Treatment: Use protection
Describe Tobacco Mosaic Virus
Caused by a virus
Symptoms: Causes a mosaic pattern and discoloration of leaves
Spread: Insect lands on infected plant and lands on healthy after
Treatment: Good field hygiene
Summarise Salmonella
Caused by bacteria
Symptoms: Vomiting and abdominal cramps
Spread: Uncooked food
Treatment: Antibiotics
Describe Gonorrhea
Caused by a bacteria
Symptoms: Yellow discharge and pain urinating
Spread: Unprotected sexual contact
Treatment: Antibiotics
Summarise Rose black spot
Caused by fungi
Symptoms: Black/Purple spots on the leaves
Spread: Spores carried by wind and rain
Treatment: Removing infected leaves and stems
Describe Malaria
Caused by a protist
Symptoms: Fever and sometimes death, damages RBCs and liver
Spread: Mosquitoes used as a vector.
Prevention: Use insecticides
