Most likely there have been so many articles reporting COVID-19 related data that each 3 digit number you try has been a part of reports from multiple places. So a good search engine finds them.
These are not articles found be a search engine. The links and the articles are generated.
If you hit them enough times you will see the same articles come up with only the numbers changed. And the links do not work if you cut and paste them into a different browser.
They are fake news. To what purpose I cannot tell.