To back that post up here’s an article which explains the situation about a vaccine eliminating a virus versus controlling a disease and pandemic:
For example, vaccines targeting rotavirus, a common cause of diarrhoea in infants, are only capable of preventing severe disease.
But this has still proven invaluable in controlling the virus.
In the US, there has been almost 90 per cent fewer cases of rotavirus-associated hospital visits since the vaccine was introduced in 2006.
Few vaccines prevent infection. Here is why that's not a problem - ABC News