It's an illness of the epithelial tissues, - ie the surfaces of your organs, especially the insides of the vascular system that pumps the blood around your body

It's an illness of the epithelial tissues, - ie the surfaces of your organs, especially the insides of the vascular system that pumps the blood around your body - sure there's a lot of epithelial tissues in your lungs but they are all through your body, especially in the circulatory system and heart - it's not really surprising that damaging that results in strokes and heart attacks. It's also not surprising that it results in the virus travelling through the entire body