one or more options could be available toward the end of this year or early next, the path to delivering vaccines to a population of 330 million people remains unclear for the local health officials expected to carry out the work.
Experts are frustrated after months of inconsistent information and concerned that a mass vaccination plan will stumbleMillions of Americans are counting on a Covid-19 vaccine to curb the global pandemic and return life to normal.While
Source: the guardian
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