Tud vektor (AZ, JJ) je dejansko virus, ki je nesposoben reprodukcije in je gensko spremenjen, tko da te na nek način okužijo, da potem začno celice proizvajat nek protein ki potem sproži imunski odziv. MRNA pa to fazo preskoči, če prav vem. Klasika pa dejansko dobiš oslabljen virus Sars cov... Moje laično razumevanje, če me kdo popravi bo dobrodošlo.
AZ in JJ uporabljata adenovirus, kitajsko cepivo je pa tisto, ki ti dejansko priskrbi neaktiven covid virus. Demzova trditev se po mojem razumevanju lahko nanaša zgolj na takšna cepiva, ki pa pri nas niso v uporabi.
Tole se pa nanaša na AZ & JJ:
"Viral vector vaccines use a modified, harmless version of a different virus as a vector, or carrier, to deliver immunity instructions to cells in the body. The body then follows those instructions to build an immune response to the intended virus (in this case, SARS-CoV-2, which causes COVID-19.)
The virus vector being used in the Johnson & Johnson and AstraZeneca vaccines is an adenovirus, a common type of virus that typically causes mild cold symptoms when it infects someone.
COVID-19 viral vector vaccines inject a harmless adenovirus vector, which carries unique genetic information from the COVID-19 virus to human cells. Once it reaches human cells, the vector uses that genetic information with the cell’s machinery to produce a COVID-19 spike protein (a small piece of SARS-CoV-2) on the cell’s surface. That spike protein triggers a response from the body’s immune system to start producing antibodies to COVID-19."
COVID-19 vaccine candidates from Johnson & Johnson and Oxford/AstraZeneca use a viral vector vaccine technology that's been studied since the 1970s.
wexnermedical.osu.edu
