C19 an abbreviation for COVID19 an abbreviation of

Coronavirus 2019
C19 a modern pandemic killing thousands globally, adjusting the way we travel & shop forcing governments to implement physical restrictions through social distancing, closing non essential businesses, shutting schools and international border closures.
by ninesheets April 14, 2020
C19 enviro ; means logically, burning the dead bodies of victims of COVID-19 would help generate hurd immunity. So therefore suggests, as there burying them, that it must be due to climate control.
Weather C19 enviro was man-made or a natural occurrence, it's the only way we can survive the future.
by Bryn Benn April 14, 2020