A vaccine is a biological preparation that improves immunity to a particular disease. It comes as a prevention from some fatal and life taking diseases such as Typhoid, Hepatitis A, B and C, Hemophilia, influenza vaccine, cholera vaccine, bubonic plague vaccine, polio vaccine, rabies and many other traumatic diseases. These vaccines are taken under medical supervision and taken according the environmental situations.

Reasons, Occurrence and Risk Factors

Disease prevention should be the main motto of public health. It is always better to prevent a disease than to treat it. Vaccines can protect both the people who receive them and those with whom they come in contact. Different diseases have different viruses which have their respective names

But there are some common risk factors which are responsible for some diseases which require vaccination:

  • Weaker Immune system
  • Virus
  • Contaminated water and Food
  • Bacteria
  • Any transmitted virus
  • Natural disaster like floods and cyclones, ecological changes
  • Pre-existent Diseases in the Population
  • Poor health services by health Departments and Government services
  • Poor nutrition
  • Decomposition of Organic like Fly Breeding
  • Poor sanitation


When a person becomes infected with any disease virus, the virus begins to multiply within the cells that line the back of the intestines and affects directly the blood and other parts of the body. Or When a person becomes infected with the bacteria that cause the particular disease, the bacteria begin to multiply and spread into the bloodstream.

Some of the symptoms which are the symptoms of various problems of various diseases:

  • Fever
  • Sore throat
  • Nausea
  • Vomiting
  • Abdominal pain
  • Constipation
  • Flu-like symptoms
  • Weight Loss
  • Loss of Appetite

Signs and tests

Blood Tests: Your doctor is likely to suspected fever based on your symptoms and you’re medical history. But the diagnosis is usually confirmed by identifying in a culture of your blood or other body fluid or tissue.

Body Fluid or Culture Test:
Although performing a culture test is the mainstay for diagnosis, in some instances other testing may be used to confirm a suspected typhoid infection, such as a test to detect antibodies to typhoid bacteria in your blood or a test that checks for typhoid DNA in a blood sample.

Physical Examination: Diseases such as polio is examined by physical test such as examining of stiffness of body parts like neck and back stiffness, abnormal reflexes, and difficulty swallowing and breathing.


Vaccination: Prevention of these above mentioned disease is only proper and timely vaccinations.

Repeated hand washing is the best way to control infection. Wash your hands thoroughly with hot, soapy water, especially before eating or preparing food and after using the toilet. Carry an alcohol-based hand sanitizer for times when water isn’t available.

Try to avoid open and cut fruits and veggies because raw produce may have been washed in unsafe water, do not have fruits and vegetables that you can’t peel, especially lettuce. To be absolutely safe, you may want to avoid raw foods entirely.


Diseases like smallpox, chicken pox, tuberculosis, measles, diphtheria, whooping cough, malaria, dysentery or cholera have caused waves around the world. Influenza, bird flu, swine flu, HIV/AIDS are still widespread today. The treatment of these diseases is the respective vaccines which are prescribed according to the patient’s condition.

But it is always better to have these vaccines prior the problem occurs.