THIS PROJECT IS DONE BY :

M. ANITHA (X STD)

J. JAYA CHITRA(X STD)

UNDER GUIDANCE OF :

MRS. MALIKA( BOTANY)

INTRODUCTION

• Introduction

• Virology is the branch of Biology

• Which deals with the study of Virus.

• Virus Diseases in Man

• AIDS

• Advice For young Boys & Girls

• Conclusion

Living characteristics

• Virus cannot grow or undergo binary fission

• Virus posses only one type of nucleic acid surround by a protein coat.

• Viruses are the simplest forms of life

Virus and Bacteria

VirusVirus BacteriaBacteriaViruses multiply within Viruses multiply within living cellsliving cellsViruses causes Viruses causes disease in plantdisease in plant

Bacteria are living Bacteria are living ORGANISMSORGANISMSBacteria reproduce by Bacteria reproduce by fissionfission

Polio :

Polio is caused by polio virus. Paralysis is the Main symptom. The disease spread through contaminated water ,

Food, milk, fingers etc.,

Chicken pox :

Chicken pox is caused by human herpes virus – 3. the main symptoms is the appearance of rashes on the Body.

AIDS stands for ACQUIRED IMMUNE DEFICIENCY SYNDROME. AIDS is caused by a HUMAN IMMUNODEFICIENCY

VIRUS(HIV).

AIDS is a viral disease that is caught from some one Who has the disease already.

The HIV attacks the immune system in the human body And makes it not work properly.therefore deficiency occurs in the Body.

What does HIV do inside the human body ?

(a) The virus find the ‘T’ cells in the blood. The ‘T’ cells are in

Charge of immune system.

(b) The virus enters the ‘T’ cell and destroys it.

(c) The virus as it destroys the cell replicates itself and

Produces a large number of virions of HIV.

When the immune system in the human body is destroyed,The person with AIDS could catch any disease and die.

ADVICE FOR YOUNG BOYS AND GIRLS

You must lead a disciplined life at school ,

Hostel and at home. You must firmly stick on to high morals in your Life. Do not inject yourself with any kind of drugs. Do not attempt Sex with a boy or girl before marriage. If you are injured in an Accident and if you need blood transfusion, get admitted in a Standard hospital where you will get tested blood only.

1. Try to minimize pollution.

2. Try to promote personal hygiene.

3. Keep up the health rules.

4. To ensure better future for your forth coming in habitats of

earth.