is their a possibility of all the people on earth dieing of some very infectious disease some da?

Answer 1

While I suppose it is hypothetically possible, it is highly unlikely.

Considering some of the known pandemics, which are considered horribly devastating, we haven't died out. The "Black Death" in the middle ages killed a lot of people. I think I read somewhere that it was about 25% of the population - not certain of the %, but certainly far below 50, much less 100%. (This was the bubonic/pneumonic plauge.)

In 1919-20, the "Spanish Flu" killed between 25-50 million people world wide. While this is an astronomical number, it was certainly a small % of the global population. This would be 30-60% of just the US population today - devastating, but not 100% of the world. (This was actually just "the flu", albeit a very lethal strain.)

Additionally, on a more direct scientific rationale: given any disease, there will always be a certain % of people who are naturally immune - for unknown reasons, they just don't catch the disease. This was true even for things like smallpox (and no, I don't mean people who had been exposed to other poxes and developed an immunity that way - I mean people with no other immunity who just didn't catch smallpox.).

A much more likely situation would be a pandemic which caused a rapid, highly lethal disease which effected the ability of a nation to sustain itself economically - shortages of food and other daily needs due to people being too sick to work or dying. Again, this would still not wipe out the whole world.

An epidemic is a wide-spread outbreak of a disease effecting an area, e.g. California or even all of the west coast of the US.
A pandemic is an outbreak that effects huge areas, like an entire continent or the whole world.

Answer 2

No but only if your a girl. Cause im a surviver and Ill live and if your a girl youll survive to and we can repopulate the world

Answer 3

who knows" men do not seize creating things to kill himself with.