Zoono and SARS, page-718

To get the world moving and kickstart international travel again, experts say we'll need up to 15 billion doses of COVID-19 vaccine.
Pfizer has estimated it could have 50 million doses available globally by the end of 2020, enough for 25 million people.

But Mr Cueni warns rushing a vaccine can deter public trust in medicine and encourage anti-vaxxer movements."If something goes wrong with the vaccine, you could do tremendous damage in the confidence of vaccination and immunisation," he said.https://www.abc.net.au/news/2020-06-09/who-will-get-coronavirus-vaccine-first/12316656

https://www.copyright link/politics/federal/experts-hail-positive-news-about-pfizer-vaccine-20201110-p56d14

Still, many questions remain, including whether the vaccine can prevent severe disease or complications, how long it will protect against infection and how well it will work in the elderly.Also, whenever a vaccine does arrive, initial supplies will be scarce and rationed, with priority likely to be given to health care workers and others on the front lines
Gruber said he did not yet have a breakdown of how many of the first 94 infections occurred among Black or Latino participants, two communities hit hard by the disease. He also did he know exactly how many elderly people in the trial got sick. Older people with weakened immune systems are particularly vulnerable to severe COVID-19.

New Zealand has already secured a deal for enough doses for 750,000 people here, subject to requirements.

https://theconversation.com/coronavirus-vaccine-trials-wont-tell-us-if-they-save-lives-prevent-serious-illness-or-stop-transmission-heres-why-148470

https://www.nzherald.co.nz/lifestyle/covid-19-coronavirus-i-could-smell-soil-for-months-six-cases-with-very-different-symptoms/HFCO62OX436GYYX4OBUJXI
Many are so fatigued they have barely been able to walk upstairs for months, others still get short of breath from the simplest task, and for some every bite of food that passes their lips tastes of ash.