The question divides public opinion and the scientific community whenever a variant emerges.
Some sneer, citing the Chernobyl cloud which miraculously stops at the border, or denouncing a nationalist withdrawal;
the others, on the contrary, see border control as a pragmatic and realistic solution, the effectiveness of which is certainly not absolute, but which makes it possible to limit the damage.
Read alsoNew variant "worrying": is France able to detect it quickly?
It is clear that the partial or total border closure measures, much criticized at the start of the epidemic in March 2020 - the WHO was adamant in asserting their uselessness - have become a solution acclaimed by many countries over the waves. epidemics.
With the Omicron variant, discovered Thursday in South Africa, deemed "
worrying
" by the WHO and which has a record number of 32 mutations in its Spike protein, decisions to limit movement have been even faster than for Alpha variants (appeared in England) and Delta
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