In many countries vaccines will only be licenced after rigorous safety testing and extensive clinical trials. Those clinical trials will usually include thousan

In many countries vaccines will only be licenced after rigorous safety testing and extensive clinical trials. Those clinical trials will usually include thousands of participants. After a new vaccine is introduced, it will continue to be monitored. It's simply not true that "Vaccine makers can literally solubilize dog shit and call it a vaccine." This information site from Oxford University provides an excellent summary of how vaccines are tested, licensed and monitored in the UK. The process is probably similar in many other countries: http://vk.ovg.ox.ac.uk/vaccine-development http://vk.ovg.ox.ac.uk/vaccine-development