How can better health be achieved?
By controlling harmful microorganisms and vectors and improving health facilities.
What is a vector?
An animal that transmits disease-causing organisms from one host to another.
What are two methods to control harmful microorganisms?
Boiling food and sterilizing medical instruments.
What is the role of antiseptics?
To destroy microorganisms or prevent their multiplication.
Give an example of a disinfectant.
Lysol.
How does salting preserve food?
It plasmolyzes bacterial cells by drawing water out, inhibiting their survival.
Name a mechanical method of disease transmission by vectors.
Pathogens carried on body parts like legs or wings of insects.
What is the biological method of disease transmission by vectors?
Pathogens develop and multiply in the vector's body before transmission.
List two ways to control mosquitoes.
Use of mosquito nets and spraying stagnant water with oil.
How can houseflies be controlled?
By keeping food covered and destroying breeding areas.
What is the role of molluscicides?
To control water snails that act as vectors by affecting their breeding.
Name one practice for maintaining good health.
Proper disposal of refuse and sewage.
How can clean drinking water be ensured?
By boiling water or adding chlorine.
How can food be protected from contamination?
By inspecting and storing food under hygienic conditions.
Name a preventive measure for controlling diseases.
Vaccination programs for children.
What does the World Health Organization (WHO) do?
Provides technical aid, standardizes drugs, and coordinates health research.
What is the role of UNICEF?
To improve child health, provide vaccines, and address malnutrition.
How does the Red Cross Society assist during peacetime?
By providing first aid and aiding victims of natural disasters.
What is one function of the Nigerian Medical Association (NMA)?
To monitor the recruitment of trained doctors.
What does UNESCO do to support health indirectly?
By raising educational standards in developing countries.
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