It has been nine months since the World Health Organisation (WHO) declared the outbreak of Covid-19, caused by the SARS-CoV-2 virus, a “public health emergency of international concern”. Since then, more than 44-million cases have been recorded and over 1-million lives lost. Economic costs measure in trillions of dollars. Global recovery will take years.

A safe, effective Covid-19 vaccine is expected to be developed in record time and may be approved for production, distribution and acceptance some time in 2021. Public health experts say that at least 70% of any community must get a Covid-19 vaccine to achieve an acceptable level of immunity to protect its members...

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