As I am uninformed regarding Cuban access to the internet, I am not particularly surprised to hear you haven't dove into this topic, regardless of it's exigent threat posture. Given the possible restrictions on access to the internet in Cuba, I can recommend 'The Real Anthony Fauci' by Robert F. Kennedy, Jr. as a good source of information on the topic.
If you can get books in Cuba, that is.
Thanks for your kind feedback. I don't have problem with Internet access. Though it's not the best we have some alternatives. In my case I have a very good fixed broadband connection at my work. I just have not looked into this trend but Will do it ASAP. I already downloaded the suggested book. Best regards from the island.