When you contract an infection, our body responds by producing substances called ancicorpi; for each infectious disease, are products of the specific antibodies, which fight infection and help us heal.
Cured the disease, the antibodies remain in our body by preventing new infections caused by the same germ. This process is called immunityà.
The newborn babies are usually immune to many diseases, becauseé are protected by the antibodies transmitted to them by the mother during pregnancy.
This immunityà forò decreases with time, until disappearing towards the completion of the first year of età.
Fortunately, just with vaccinations can make children immune to many diseases.
The vaccines are comprised of an infectious agent (bacterium, virus or component thereof) rendered “harmless” in such a way to induce the production of antibodies without causing the disease; the antibodies produced following the vaccination remain in the body and protect it from diseases against which è was performed the vaccination.
Perché the vaccinations are so important?
For two reasons:
- The vaccinations scheduled for all children protection against nine diseases: diphtheria, tetanus, mumps (mumps), poliomyelitis, measles, pertussis, rubella, hepatitis B and Haemophilus influenzae type b (Hib). Vaccination è the più safe and more effective way to obtain protection from these diseases.
- vaccination is important to prevent the movement of the germ in the population. If the number of vaccinated people is very high, the infection does not può spread along from person to person and the disease becomes less and less frequent until they disappear entirely. In this way, smallpox has been eliminated from all over the world, polio has been erased from most of the Countries and in some nations è già disappeared of the measles.
childhood infectious diseases that can be prevented with vaccinations are dangerous really?
You. Thanks to vaccination some of these diseases have virtually disappeared, and many of us do not remember the seriousnessà, but these diseases can cause serious complications, permanent damage and sometimes even death. For example, both measles and pertussis (whooping cough) can cause encephalitis, which is a condition that is extremely serious.
Also the diseases that are considered by many to be mild, may therefore be a serious threat to your health. If così had not, a vaccine would not be justified. the
it is true that some infectious diseases have declined or disappeared due to the improved hygienic conditions and health well before they were introduced vaccination programs?
No. The improved hygiene and sanitation have certainly contributed to better control infectious diseases, but it is only after the large-scale use of vaccines, the incidence of some diseases has begun to decrease dramatically.
- In I960, prior to the start of mass vaccination, you are requires the uìcati in Italy, more than 3,000 cases of polio. Since the introduction of vaccination, the number of cases of the disease is quickly decreased, and for more than twenty years with polio, in Italy there does not exist più. The same effect is visible for diphtheria.
- In Italy, before it was introduced the vaccine antimorbillo, were reported each year, about 74,000 cases of measles. In 2004, 1’87 of the children under two years of age has been vaccinated towards this disease, and have been reported only 675 cases.
- Thanks to vaccination against Haemophilus influenzae type b (Hib), meningitis caused by this germ, which mainly affects children in the first five years of life are drastically reduced: while in 1996 they were reported 130 cases of meningitis from Hib, in 2004 there were registered only 18 cases.
The vaccines are safe?
Yes, vaccines are extremely safe. However, like all tarmaci, including even the natural ones, the vaccines can have side effects.
In the vast majority of cases, these symptoms trivial as fever, increased irritabilità of the child or a local reaction at the seat in which è was made the injection.
serious Complications after vaccination are extremely rare. The risk of adverse reactions è much moreù the bottom of what is commonly accepted for other situations considered as quite normal, like riding a bicycle or travelling in the car.
it is necessary also to remember that the risks associated with the diseases are enormously greater than, the risks associated with the vaccination.
the Municipality of Rome – Department for Policies for the Promotion of the Child and the Family – Department XVI
Page updated on 2/6/2006