New corona theory from US researchers: do masks make us immune?

In the video: This is what hygienist Dr. Tin to study Is there anything wrong with the theory? We have that Dr. Georg-Christian Zinn, Director … Read more

Does the mask requirement make us immune?

In the video: This is what hygienist Dr. Tin to study Is there anything wrong with the theory? We have that Dr. Georg-Christian Zinn, Director … Read more

Does the mask requirement make us immune to corona?

In the video: This is what hygienist Dr. Tin to study Is there anything wrong with the theory? We have that Dr. Georg-Christian Zinn, Director … Read more