Animals are commonly used in vaccine trials. Every laboratory animal did not die during COVID-19 vaccine trials.
During trials, animals including monkeys, mice, and pigs can be used by different research and pharmaceutical companies. This has also been the case with the COVID-19 vaccines that have been developed up to now.
No one has reported that every animal died after being injected with the COVID-19 vaccine. Indeed, many animal trials yielded positive results. For instance, the Oxford/AstraZeneca vaccine triggered an immune response in pigs, the Sinovac vaccine protected macaques from the new coronavirus, and the Pfizer/BioNTech vaccine worked well in mice and non-human primates.
Though it may be the case that animals were harmed during the development of a COVID-19 vaccine, there have been no reports of animals being injected with a COVID-19 vaccine and then dying as a result. In any case, it is certainly true that not all laboratory animals died from being given the vaccine.
The COVID-19 pandemic has given rise to a lot of potentially dangerous misinformation. For reliable advice on COVID-19 including symptoms, prevention and available treatment, please refer to the World Health Organisation or your national healthcare authority.