The last major outbreak of Ebola in West Africa was contained because it affected areas where quarantine and contact tracing was possible plus it was a known virus and recognised much more quickly.
Coronavirus has been so deadly exactly because it was a novel virus. Our immune systems did not know how to react nor did hospital staff know how to treat it. If you think back to the early weeks and months it was all about helping patients to breathe while their own immune systems fought as best they could. But that often resulted in cytokine storms which caused multiple organ failure. Now, medics know to treat with immuno-suppressants and the vaccines, though not 100% effective, do give very good protection again infection or becoming seriously ill.
Unless you shut down all international travel and trade you will never contain this. Stopping individuals from travelling for business or pleasure is only part of the picture. We still demand goods and services. Those goods and services rely on raw materials and finished products being shipped around the globe and the logistics of that demand that people interact with one another.
Problems in Harry and Meghan Marriage



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at you using the BBC as your QED, Alegrias.