There are very dangerous viruses and bacteria that can cause life-threatening diseases.
In order to protect yourself as best as possible against such diseases, there are vaccinations (e.g. measles). A vaccination not only protects the vaccinated person, but also reduces the transmission of the pathogens.
This community protection (herd immunity) is very important because it can defeat pathogens.
What helps against viruses? (CC BY 4.0)
Source: sat nano/ Raketenfilm / Titus Gust / Konstantin Fuchs
Herd immunity(fromEnglishherd immunity) referred to in theEpidemiologyan indirect form of protection againstcontagious disease, which occurs when a high percentage of apopulationhas already become immune – either through infection or throughVaccination– so that the spread of thePathogenwithin the population as a whole.
There are two ways in which herd immunity can develop: either when a large part of the population has had the infection and acquired immunity or by vaccinating a sufficiently large number of people.
Video Herd Immunity (CC BY 4.0)
3sat/nano/Rocket Film/Andreas Gust/Konstantin Fuchs/
Cornelia Betsch, University of Erfurt
Robert Boehm, RWTH Aachen
Dirk Brockmann, Robert Koch Institute & Humboldt University of Berlin
Icon made by Scott de Jonge from www.flaticon.com