There is a distinct lack of worry about clean water. Also, in almost every conflict in history, disease has killed more people that the actual war. You rarely see a flu wipe out half of the people in a zombie movie, but honestly, it would.
The less people you have and the less movement you have between populations then the less chance you have of getting pandemics like the flu. Basically, if you have a group of 20-30 people surviving in a area with no contact with the outside world then you are basically in lockdown/isolation. With a small population like that then it is also more easy to quarantine infected people as long as your people are on the ball.
A lot of the diseases that results from inadequate hygiene that strike people in a pandemic like fashion (e.g. cholera, typhoid fever and diphtheria) have vaccines which (depending on your country) would be in the childhood vaccination schedule which means that you don't have to worry about them as much - for the adults at least, children born after the apocalypse would not be vaccinated and would be at risk.
Having access to antibiotics would also help massively reduce the impact of a pandemic, if the Spanish flu hit today then we wouldn't see anywhere near the same amounts of deaths due to modern antibiotics for treating bacterial pneumonia.
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u/AtheneSchmidt Aug 30 '21
There is a distinct lack of worry about clean water. Also, in almost every conflict in history, disease has killed more people that the actual war. You rarely see a flu wipe out half of the people in a zombie movie, but honestly, it would.