Vaccine preventable diseases currently include:
- pertussis (whooping cough)
- poliomyelitis (polio)
- haemophilus influenzae type b infections.
Can vaccines prevent all types of infectious diseases?
Vaccines help prevent infectious diseases and save lives. Vaccines are responsible for the control of many infectious diseases that were once common in this country, including polio, measles, diphtheria, pertussis (whooping cough), rubella (German measles), mumps, tetanus, and Haemophilus influenzae type b (Hib).
How can vaccination prevent illness?
Vaccines are like a training course for the immune system. They prepare the body to fight disease without exposing it to disease symptoms. When foreign invaders such as bacteria or viruses enter the body, immune cells called lymphocytes respond by producing antibodies, which are protein molecules.
How has vaccination helped to fight diseases?
How do vaccines work? Vaccines help your immune system fight infections faster and more effectively. When you get a vaccine, it sparks your immune response, helping your body fight off and remember the germ so it can attack it if the germ ever invades again.
What are the six killer diseases?
Childhood mortality: six killer diseases and how to stop them
- Pneumonia. Pneumonia, usually caused by a bacterial infection, is a disease in which the air sacs in the lungs become inflamed and fill up with fluid.
- Diarrhoea. Diarrhoea is caused by an infection in the intestinal track.
What viruses have vaccines?
Although most attenuated vaccines are viral, some are bacterial in nature. Examples include the viral diseases yellow fever, measles, mumps, and rubella, and the bacterial disease typhoid.
Do vaccines weaken your immune system?
Also, vaccines do not make a child sick with the disease, and they do not weaken the immune system. Vaccines introduce a killed/disabled antigen into the body so the immune system can produce antibodies against it and create immunity to the disease.
What are the risks of vaccines?
Like any medicine, vaccines can cause side effects such as a low-grade fever, or pain and redness at injection site. Mild reactions go away within a few days on their own. Severe, long lasting side effects are extremely rare. If you have questions or concerns about a vaccine, talk with your child’s doctor.
How long do vaccines last in the body?
Duration of protection by vaccine
|Disease||Estimated duration of protection from vaccine after receipt of all recommended doses 1,2|
|Hepatitis B||>20 years to date|
|Measles||Life-long in >96% vaccines|
|Mumps||>10 years in 90%, waning slowly over time|
|Rubella||Most vaccinees (>90%) protected >15-20 years|
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What have vaccines done for us?
The most common vaccine-preventable diseases among travellers are influenza and hepatitis A. Other vaccines to consider for travel include rabies, hepatitis B, typhoid, cholera, yellow fever, Japanese encephalitis and measles. Many vaccines can be given by flexible accelerated schedules to ensure early protection.
How does receiving a vaccine affect a person’s immune system?
A vaccine works by training the immune system to recognize and combat pathogens, either viruses or bacteria. To do this, certain molecules from the pathogen must be introduced into the body to trigger an immune response. These molecules are called antigens, and they are present on all viruses and bacteria.
How many diseases have been cured?
Two infectious diseases have successfully been eradicated: smallpox and rinderpest. There are also four ongoing programs, targeting poliomyelitis, yaws, dracunculiasis, and malaria.