That's the warning from a leading immunologist.
Ireland needs to be prepared for a possible rise in covid infections this autumn.
That's the warning from leading immunologist, Mullingar's Kingston Mills, who's recommending a new programme of vaccination be ready ahead of the winter season.
He admits the first generation of vaccines has been very effective in tackling the spread of the virus, which he says is no longer "lethal".
The Professor of Experimental Immunology says we're only a couple of years away from developing a nasal vaccine to stop people contracting covid at all: