From the video: In the '50s Myxoma virus was introduced and at first killed the host in 4-10 days but by 1953 the virus declined to 95% effectiveness killing hosts in 3-4 weeks. Immune rabbits bread [sic] oops bred with others and genetically resistant SUPER BUNNIES came into play.
To the video from the link above: Top music and empty streets ..
Andrea Bocelli: Music For Hope - Live From Duomo di Milano
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Andrea Bocelli
On Easter Sunday (April 12, 2020), by invitation of the City and of the Duomo cathedral of Milan, Italian global music icon Andrea Bocelli gave a solo performance representing a message of love, healing and hope to Italy and the world.