HIV was identified in 1984. Researchers have yet to develop a vaccine. Does the public understand that developing a vaccine isn't necessarily easy?

The first vaccine was discover by observation by Doctor Edward Jenner a British Doctor it was for Small Pox at the time 20% of the people living in the cities and 10% of the people living in the country died of Small Pox he noticed milk maids survived Small Pox they had a rash on their hands caused by milking cows and he went for noticing they survived Small Pox to finding the worlds first vaccine maybe that's an angle that again should be looked into with this Corona Covid-19 I'll be rolling up my sleeves and joining them if this goes on any longer.