WHAT DOES "ANECDOTAL EVIDENCE" MEAN EXACTLY ???

Is it True ... 

??? [  hydroxychloroquine MAY CURE SICK PEOPLE NOW THAT HAVE  COVID-19 

...whereas

vaccines MAY keep people from getting COVID-19 in a year or so from now... ] ???

Percentage of patients with PCR-positive nasopharyngeal samples from inclusion to day6 post-inclusion in COVID-19 patients treated
with hydroxychloroquine only, in COVID-19 patients treated with hydroxychloroquine and azithomycin combination, and in COVID-19 control patients.

Here is the original text on the results obtained in France in the treatment of covid-19 with the use of a combination of hydrochloroquinine and azitomycin and the video in which they are explained."

https://www.mybestlife.com/en/hydroxychloroquine-and-azithromycin-as-a-treatment-of-covid-19-2020-03-18/