State health leaders are hoping to vaccinate roughly 4.7 million adult residents. But the vaccination progress comes as medical experts warn that highly contagious coronavirus variants threaten to send numbers surging again.

More cases of the strain that originated in the United Kingdom are being found, with at least 11 confirmed cases reported in New Jersey. As Senior Correspondent Brenda Flanagan reports, it’s now a race between the variants and getting more vaccinations in arms.