Vaccinations are extremely effective.
Your first sentence denies the "herd" or community effect:
Germs can travel quickly through a community and make a lot of people sick. If enough people get sick, it can lead to an outbreak. But when enough people are vaccinated against a certain disease, the germs can’t travel as easily from person to person — and the entire community is less likely to get the disease.
That means even people who can’t get vaccinated will have some protection from getting sick. And if a person does get sick, there’s less chance of an outbreak because it’s harder for the disease to spread. Eventually, the disease becomes rare — and sometimes, it’s wiped out altogether.
https://www.vaccines.gov/basics/work/protection/index.htmlIf natural immunity were more effective there would never have been a need for vaccinations, the plagues of the past would never have happened, and those of us who remember the real effects of polio, measles, and other diseases would not have those memories since they would not have happened:
Some individuals who are concerned about the safety of vaccines and their ingredients have begun to promote natural immunity over vaccine-induced immunity, but the only way to get natural immunity is through infection with the actual disease. This means that you have to get sick—sometimes severely ill—to develop resistance.
Vaccines, on the other hand, cause a natural immune response in the body without causing illness. Vaccines are safe because the viruses or bacteria used in vaccines are dead or have been severely weakened. Our bodies recognize these weakened invaders and create antibodies to protect us against future infection. In this way, we trick our bodies into thinking we’ve already had the disease.
Both natural immunity and vaccine-induced immunity result in long-lasting, sometimes life-long, active immunity. However, the benefits of vaccine-induced immunity are much greater and the risk is much lower:
While natural immunity typically lasts longer, some vaccines produce longer-lasting immunity, such as HPV, tetanus (DTaP), Haemophilus influenzae type b (Hib), and pneumococcal.
Vaccines often protect against multiple strains of a disease, whereas infection only provides future protection against one strain. Influenza, HPV, Polio, and Pneumococcus are examples of vaccine-preventable diseases which have several strains.
Not all infections offer life-long immunity to even a single strain (i.e. pertussis).
https://www.vaccines.gov/basics/work/protection/index.htmlVaccines don't always work but they are MUCH more effective than "natural immunity" when exposed to the actual disease.
Vaccines provide as much immunity without the risk of getting and spreading the diseases.
The chart on this page shows how well vaccines work - they have cut deaths from childhood diseases dramatically:
https://www.niaid.nih.gov/research/vaccine-benefits
The effectiveness is between 91% and 100% according to government statistics.
To add to all of that, some people CANNOT get vaccinations due to immune system problems. Un-vaccinated people that can carry and spread diseases are a particular danger to those with suppressed immune systems and to those too young to get vaccinated.
Go spread your anti-vaccer nonsense somewhere else, please.
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