We look at things fundamentally differently.
- We get pandemics a few times each century. And epidemics more often. I am not sure why you say it isn't normal. It isn't usual, but it is normal.
Right..
We have the Bubonic plague in [the 14the. century], with 75 - 200 million deaths.
..then we have the Spanish Flu' in [1918 20] with 17 - 100 million deaths.
..then we have HIV/AID in [1981 - present] with ~26 million deaths so far.
..then we have Covid in [2019 - present] with 5.4 - 20 million deaths so far.
We can see that the last three major pandemics are closely grouped, with 2 of them in the 20th century and the other in early 21st.
I say that there is an increase in major pandemics in this modern age, despite our increase in medical knowledge.
I believe it is set to continue in the decades to come.
There is a link between the pace of change, such as global air travel and multi-lane highways, and climate-change. The increase in disease is also correlated with the growing pollution due to the burning of fossil fuels, as well as the obvious ability to spread quickly.