Based on the results that I have seen, I think that a Covid-19 vaccine or more than one vaccine will start to become available early in 2021 (maybe as early as January). There will not be enough to vaccinate everyone in the world who wants and needs to be vaccinated even by the Spring of 2021. It should be used to vaccinate people who are most at risk of getting the infection and of suffering badly and possibly dying. This includes nurses and doctors treating patients with covid-19 and elderly people and their carers, particularly those in care homes where the virus passes easily from one person to another.
I think early 2021 based on the results that are coming out now. It will take a while for everyone to have to vaccine as it will likely be prioritised for the people who are most susceptible to COVID19 (such as the elderly), but everything is looking very promising which is great!!
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