Dr. Stefan Lanka, PhD is a German virologist who did a control experiment, which had not been performed since 1954, that showed that the substances that were added in laboratory test tube experiments were the cause cell death, not the SARS-CoV-2 virus. He demonstrated this by using cell specimens that were never infected and were never in contact with material from a COVID-19 patient, yet the cells died. He said that the same exact particles found in the "non-infectious" tissues are claimed by virologists to demonstrate virus particles. The experiment nullifies experiments that claim viruses cause disease.
According to the video that was translated into English, the additives included fetal bovine serum, antibiotics, and foreign messenger RNA, along with a drastic reduction in the nutrient solution.