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The experts said many
must be overcome to distribute a vaccine. One
element is to create temperature-controlled cargo hubs and
. The vaccine must be kept at the same
throughout its
. Staff must be trained and quickly become experts at
handling the vaccine. The experts said another
would be security and cross-border
. They said: "Vaccines will be highly valuable
. Arrangements must be in place to ensure that
remain secure from tampering and theft."