People who smoke cigarettes do not get coronavirus. No conspiracy theories.
A new method is proposed for the prevention of coronavirus infection; the virus can be killed in 4 days. In the first few days, even before the infection takes root in your respiratory system, you can fight the disease using saline.
The World Health Organisation emphasises that "there is no evidence that regularly rinsing the nose with saline has protected people from infection with the new coronavirus ... regularly rinsing the nose has not been shown to prevent respiratory infections."
Read a similar case claiming that Russia has found a way to treat coronavirus.