Penicillin :-The discovery of penicillin by sir Fleming has

had a profound influence over the medical science. It is

obtained from the mould of breath.

Antiseptic :-An antiseptic is a chemical which destroys and

arrests the growth of bacteria. It is used in surgery. Some

important antiseptic chemicals are Lysol, dettoi, carbolic

acid, potassium permanganate .

Artificial insemination :- Artificial insemination is used

in cross-breeding to get better breeds of animals. The semen

of a male animal is introduced onto the female uterus by

means of a syringe. It is sometimes employed in human beings

also.

Hydrophobia:-This disease is caused by dog and wolf bite.

This is also called rabies. The wound of the bite is soon

healed up. Bur the symptoms of the disease show up only

after a few weeks. By and by the patient get excited and

wild and behaves amost like the animal. The cure lies in

taking anti-rabies injections which should be taken as soon

after the incident as soon after the incident as possible.

Otherwise it may be too late.

Cataract :-This is a disease of the eyes. The lens of the

eye becomes milky in appearance and the sight gets dimmer

and dimmer. The treatment is removal of the opaque lens by

operation

Mamingitis :-This is a very severe disease. It is an

infection of the spinal chord. Symptoms are fever, soar

throat , headache, vomiting and spasms of muscles of the neck

Mumps:-This is an infectious disease which generally attacks

the children.

Symptoms are swelling of the glands on the temple

accompanied by fever