All corona viruses are Trojan horses. A virus is not a cell, not even considered alive. It is a nucleic acid (DNA or RNA) wrapped in a shell of proteins which are bound to sugars, named glycoproteins. The corona viruses are all wrapped in glycoproteins. This sugar coat hides the danger inside and the human antibodies do not attack. This gives the virus the necessary extra time to attach itself to the human body and start multiplying. The sugar coating of SARS-Cov-2 is strong and allows 90% of viruses to attach before they can be destroyed. This massive number is the danger and can be seen in the reproduction count.
In this short article we present an idea to change the coating of the viruses so that the human body recognizes the danger right at the beginning. The immune system will be strong enough to kill the virus and the human will become immune. We try to achieve this goal by applying an inductive, active filter as described in this paper. Main applications of such filters would be active masks and vaccines against viruses.