People who have scleroderma also can have symptoms of another autoimmune disorder including rheumatoid arthritis, lupus or Sjogren syndrome. Pneumonic plague might be passed from animals to human beings, or from people to humans. Little droplets within the air can have the microorganisms when someone or animal coughs or sneezes. https://www.sgvascularctr.com/treatments-for-gangrene-insights-from-a-vascular-surgeon/