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Wayson stain

Wayson stain of Yersinia pestis showing characteristic safety pin appearance Wayson stain is a modified methylene blue stain used to demonstrate Yersinia pestis for diagnosis of bubonic plague.
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Clostridium welchii

Clostridium perfringens Previous name of Clostridium prefringens, an anaerobic, spore forming, gram positive bacilli. It causes many conditions such as gas gangrene, food poisoning, gangrenous appendicitis and necrotising
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Drug therapy for hypertension

Diuretics eg: hydrachlorothiazide Angiotensin converting enzyme inhibitors  eg: enalapril, ramipril Angiotensin receptor blockers eg:losartan, candesartan Adrenergic blocking agents eg: propranalol, atenelol Calcium Channel blockers eg: verapamil, diltiazem Central
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