Continuing from Part 3.

Just going back to the Canadian government website documentation describing the four categories of COVID-19 vaccines:

Here is a second category:
COVID-19 viral vector-based vaccines

Two of the vaccines approved for use in Canada are viral vector-based vaccines:
AstraZeneca Vaxzevria COVID-19 vaccine
Janssen (Johnson & Johnson) COVID-19 vaccine

These types of vaccines use a harmless virus (in this case, the adenovirus) as a delivery system. This vector virus is not the virus that causes COVID-19. You can’t get COVID-19 from the vaccine itself.

Adenoviruses are viruses that cause the common cold. There are many different types, including those that cause colds in humans and those that infect other species. Scientists have been using these viruses for decades to deliver the instructions for proteins.

…
Once injected into your body, the adenovirus in the vaccine produces the SARS-CoV-2 spike protein. This protein doesn’t make you sick. It does its job and then goes away.

Through this process, your body can mount a strong immune response against the spike protein without exposing you to the virus that causes COVID-19.

….
Viral vector-based technology has been used to develop:

• COVID-19 vaccines
• an Ebola vaccine
• many vaccines for animals

. . .

Note the claim that “it doesn’t make you sick.” This kind of statement is very bold.

This page has similar safety claims to the mRNA page.

Note that these vaccines use an “adenovirus” and “viral vector-based technology.” It was confirmed to me in 2020 that adenovirus vectors are made from aborted fetal cells.

If you follow the above links for both products, and go to Regulatory Information for each, eventually you find the product monographs for these two products which indicate the use of human cell lines:
https://covid-vaccine.canada.ca/info/pdf/astrazeneca-covid-19-vaccine-pm-en.pdf
https://covid-vaccine.canada.ca/info/pdf/janssen-covid-19-vaccine-pm-en.pdf

I also found confirmation of this at the European Medicines Agency as I reported here.

Notice the very limited history of the use of this technology for humans indicating plenty of doubt about its safety: “COVID-19 Vaccines,” “An Ebola vaccine,” “many vaccines for animals.”

Follow-up
Ebola vaccine
Use of this type of vaccine for animals