The Constraints on Development of RNA Vaccines

HIV is a virus which is covered with sugar covering. And that is the part which is not important constantly mutate. So tricking and exhausting the immune response. This SARS-CoV-2, this virus was a simple one, easy. HIV, you know, working 20 more than 20 years to develop vaccine is difficult because the pathogen is very tricky. But now that you could see that both companies, Moderna and BioNTech announced with Pfizer that they will have a vaccine against shingles right now. The shingrix is a very good vaccine, but in Europe, it is like 800 euro or 600 euro. Hopefully the RNA vaccine would be much