evidence: Unlike food products, the list of vaccine ingredients may include products used during the manufacturing process, even if they do not remain in the finished product. Added ingredients are present in very small quantities (usually a few milligrams). Products used in making vaccines or growing the active ingredients may not remain in the final vaccine at all. If they do, they are present only in trace amounts. [...] The Oxford-AstraZeneca vaccine for COVID-19, ChAdOx1 nCoV-19, is made using a modified adenovirus, which is used to carry the genetic code for the coronavirus spike protein. This means that the vaccine is a GMO. The adenovirus has been modified in this way to prevent it from replicating inside the body so that it cannot cause an infection. [...] Members of Muslim or Jewish religious communities may be concerned about using vaccines that contain gelatine from pigs (porcine gelatine). According to Jewish laws, there is no problem with gelatine or any other animal substance if it is used in a product that does not go into the mouth. Some Muslim leaders have also ruled that the use of gelatine in vaccines does not break religious dietary laws, because it is highly purified and it is also injected or inhaled rather than ingested (eaten).