COVID-19 cases in the U.K. have been climbing steadily since the appearance of the coronavirus variant originally found in India, known as delta orB.1.617.2. Communities with outbreaks have launched mass coronavirustesting and stepped upvaccinationcampaigns, but experts are urging a delay in the easing of COVID-19 restrictions, expected June 21.

Twenty candidates are running for mayor of London in this Thursday's election, each offering their own particular spin on how they'll revive the U.K.'s biggest city post-pandemic.

Turning places of worship into mass vaccinations centers and reaching out on TikTok: How groups in the U.K. are working to increase the vaccine rates in the Black, Asian and minority ethnic communities.