Assertion: severe gastritis | /r/CreatedBy | certain microbes
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Source sentences:
text: Severe gastritis develops as a result of overeating, alcohol abuse, poisoning by alkalis or acids, the intake of irritative medicines, or the ingestion of food that is mechanically irritating, spicy, or too cold or too hot or fatty food that is hard to digest; severe gastritis can also be caused by certain microbes (streptococci, staphylococci, salmonellae, etc.), which enter the organism from contaminated food.