B5. Communicable Diseases Flashcards
What is a communicable disease?
A communicable disease is a disease that is caused by a pathogen. It can be transmitted from one person to another.
Define ‘health’
Health is the state of physical and mental well-being.
What is a pathogen?
A pathogen is a microorganism that causes a disease e.g. bacteria, viruses, fungi, protists
Name some factors (other than disease) than can have an effect on physical/mental health?
- Diet
- Stress
- Life situations
Name some risk factors for disease
- Smoking
- Exposure to radiation
- Excessive alcohol
- Carcinogens
- Obesity
Explain how different type of diseases can interact with each other.
- Problems with the immune system mean that an individual is more likely to suffer from infectious diseases.
- Viruses living in cells can be a trigger for cancers.
- Immune reactions initially caused by a pathogen can trigger allergies such as skin rashes and asthma.
- Severe physical illnesses can lead to mental illnesses like depression.
What type of pathogen causes measles?
A virus
What type of pathogen causes AIDS
A virus called HIV
What type of pathogen causes tobacco mosaic disease in plants
Tobacco mosaic virus
What type of pathogen causes salmonella?
Bacteria
What type of pathogen causes gonorrhoea
Bacteria
What type of pathogen causes rose black spot in plants?
Fungi
What type of pathogen causes malaria?
Protist
What are the symptoms of measles?
Fever, red skin rash. Can be very serious.
What are the symptoms of AIDS?
Flu-like symptoms. The virus attacks the bodies immune cells to the point they can no longer fight diseases.
What are the symptoms of tobacco mosaic disease in plants?
Mosaic patter of discolouration on the leaves which affects the growth of the plant due to lack of photosynthesis.
What are the symptoms of salmonella (food poisoning)?
Fever, abdominal cramps
What are the symptoms of gonorrhoea?
Thick yellow/green discharge from the vagina or penis and pain when urinating.
What are the symptoms of rose black spot in plants?
A fungal disease where purple or black spots develop on the leaves. Affects the growth of the plant as photosynthesis cannot take place.
What are the symptoms of malaria?
Recurrent episodes of fever, can be fatal.
