US201562240783P·2015-10-13; US201615293211A·2016-10-13; US201715495485A·2017-04-24; US201916273141A·2019-02-11; US201916704844A·2019-12-05; US202016876114A·2020-05-17
The application and the publication date for COVID-19 was 2020-05-17 and 2020-09-03. It uses priorities which are previous patent applications for the method now being used for covid-19 but was designed for other diseases. Covid was added to this in 2020 but it was not patented for covid in 2015!
Get a life!