Science Do as directed; [Bio-1 M]

Acquired Immunodeficiency Syndrome.

It is transmitted directly (by sneezing, coughing) and indirectly (air borne disease).

Eating balanced diet and personal and domestic hygiene are two basic conditions necessary for keeping good health.

It may not be very easy to treat a communicable disease and so it is always a good idea to prevent them from happening because,

1. A communicable disease can damage the body organ functioning.
2. A treatment will take time, money and other resources. Moreover, the person may be bedridden for the period.
3. A communicable disease can spread very fast that can be contracted by other people.

Therefore, prevention is always better than cure when it comes to communicable diseases.

It requires protein of human blood to lay eggs and transmit the disease via blood.

Barry Marshall and Robin Warren got Nobel prize for Physiology and Medicine, 2005 for discovery of treatment of peptic ulcers.

Sir. Edward Jenner discovered smallpox vaccine.

A person may be carrier of some disease. Such a person may take that particular disease to a foreign country. Therefore, all visitors to a foreign country are vaccinated against the disease which is not prevalent in that country. It also acts as preventive measure against diseases commonly found in foreign country. This way the traveller and the host country become disease free.

Mental health and social well being are abstract concepts and cannot be measured on any parameters.

Liver is affected when a person is suffering from Jaundice.

T.B. day is celebrated on 24^th March.

Malaria day is celebrated on 25 April.

Goiters can occur when the thyroid gland produces either too much thyroid hormone (hyperthyroidism) or not enough (hypothyroidism). Much more rarely, the problem may arise when the pituitary gland stimulates thyroid growth to boost production of the hormone. It is a deficiency disease.

Icterus is another name of jaundice.

HIV = Human Immunodeficiency Virus.

DPT = Diphtheria, pertussis (whooping cough) and tetanus.

Wearing socks and full sleeves at night will not prevent the attack from dengue as dengue spreads at day time. Dengue is caused by bite of Aedes aegypti mosquito which is active during day time only.

Yes. ORS prevents dehydration. Diarrhoea is generally cured automatically after 1 to 2 days because it is mostly viral infection.

Chronic disease is a long duration slow developing, disabling disease that shows up in long time.

White Plague and Pott’s disease are another name of tuberculosis.

Hydrophobia is another name of rabies.

An acute disease is a short duration disease which often has a relatively severe course.

The essential conditions of sound health is mental, physical and social well being.

Noninfectious diseases are the ones which are produced by the factors other than living organisms and are incapable of spreading from one person to another. like high blood pressure.

Contributing causes are factors which make an individual prone to catch a disease, e.g. undernourishment, defective heredity, poor public health services.

Acquired diseases are those diseases which one individual picks up after birth. like Jaundice.

Dengue, Malaria, Kala-azar and HIV-AIDS have protozoan in origin.

There are two ways to prevent being infected by Protozoa. They are:

We should avoid contaminated:

1. Food.
2. Water.