Ten years is what we are led to believe for vaccines to be developed, tested and after many trials deemed safe
I absolutely can't believe you are saying this. This particular issue has been discussed and explained extensively. But I'll give it a go, seeing as how you missed it.
The Covid-19 vaccines have built on years of previous vaccine science and research. We have had vaccines since the 1940s. Currently there is a vast array of vaccines given worldwide, with millions of people receiving them safely every year
More recently we have had similar viruses such as SARS, a severe acute respiratory syndrome, epidemic in 2002 and the emergence of MERS, or Middle East respiratory syndrome, in 2012. Both these Coronaviruses were studied extensively, and gave a basis for the vaccine research for Covid-19.
"Early efforts by scientists at Oxford University to create an adenovirus-based vaccine against MERS provided the necessary experimental experience and groundwork to develop an adenovirus vaccine for COVID-19.”
'The biggest misconception is the work on the vaccine started when the pandemic began. Even before Covid-19 appeared Oxford University were working on vaccines in readiness for the next viral outbreak."
Vaccine research is expensive but again in the face of the pandemic, many countries have thrown a great deal of money into the mix in order to find a vaccine. This doesn't normally happen.
As the virus spread and became a pandemic, it spurred global cooperation for vaccine research and distribution. Time was a luxury the world could not afford. Researchers quickly mobilised to share their coronavirus data with other scientists. Due to the urgency of the situation, partnerships were forged and data shared. All these factors significantly reduced the length of time normally taken to find a vaccine. Many people stepped forward to be part of the trials needed to test the vaccines, as everyone realised the importance of the vaccine and the haste required. The data was checked and analysed swiftly but every single element, that normally takes years, was done correctly. This was due to the number of people working to produce a result. In other words, if I pay someone to clean my house and one person does it, it can take all day. If eight people clean my house, it's done in an hour.
I hope this helps.