None are. Hence why it is important for everyone who can be vaccinated do so...this eliminates hosts for it to spread to.
This kind of stuff making a comeback is a combination of anti-vaxx militants and the uncontrolled borders.
None are. Hence why it is important for everyone who can be vaccinated do so.
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When most people are vaccinated, there are very few people to get sick and spread the disease to other people.
So even if you do not get vaccine, you have only small likeness to encounter somebody sick.
These diseases are very contagious, so if you encounter somebody, you will likely get sick.
These anti-vaxxers should thank the rest of us for being vaccinated.
Otherwise, they will likely get measles, whooping cough, polio, smallpox, chicken pox, tuberculosis, maybe even diphtheria or tetanus.
Those diseases used to devastate population, especially children.
That’s why our ancestors used to have around 10 children, so a couple would survive!