Communicable disease Flashcards
(27 cards)
Types of pathogens
Bacteria
Fugal
Viruses
Protists
What are bacteria
Small cells that rapidly reproduces inside the body
Makes you feel ill by producing toxins that damage cells and tissues
What are fungus
Single celled or have a body up of hyphae (thread like structure)
Hyphae can penetrate hum,an skin and the surface of plants causing disease
Hyphae can also produce spores which can spread to other plants and animals
What are viruses
Tiny non-cells that reproduce rapidly inside cells before bursting. The cell damage is was makes you feel ill
What are protists
Eukaryotes and majority are single celled
Often parasites and cause damage to organisms
Carriers of the disease are known as vectors
How are pathogens spread
Water
Air
Direct contact
How is measles
Spread by droplets from and infected person’s sneeze or cough
Symptoms of measles
Red skin rash, fever
How is HIV spread
Sexual contact
Exchanging bodily fluids
Mother to child (pregnancy and breast feeding)
Symptoms of HIV
Flu-like symptoms
HIV can be cured by what
Antiretroviral drugs
Tobacco Mosaic Virus
A disease that affects many species of plants (e.g. tomatoes)
Symptoms of tobacco mosaic virus
Discoloured leaves
Reduced growth
What is black rose spot?
Fungal infection that causes black spots to appear on leaves
Spread by water or the wind
Symptoms of black rose spot
Black pots on leaves
Leaves turn yellow and drop off
Treatments for Black rose spot
Fungacides
Stripping off infected leaves and burning them
Malaria
Spread through mosquitoes (vector) and spreads through blood
Symptoms of malaria
Fever
Prevention of malaria
Mosquito nets
Insecticides
Salmonella
Bacteria that causes food poisoning
Spread by eating food contaminated by salmonella
Symptoms of Salmonella
Fever
Stomach cramps
Vomiting
Diarrhoea
Prevention of salmonella
Vaccinate poultry
Cook food thoroughly
Gonorrhoea
Sexually transmitted disease
spread by by sexual contact
Symptoms of gonorrhoea
Pain when urinating
Green or yellow discharge from genitals
