6 the Mastitis Problem
نویسندگان
چکیده
Mastitis implies that an infectious agent is present in the mammary gland and is nearly always caused by bacteria. Bacteria invade the udder by entering the teat orifice, multiply and die within the gland, and in the process, produce and release toxins that cause injury to secretory tissue and stimulate an immune response. Besides bacteria, other pathogens such as yeast, Mycoplasmas, and algae can infect the mammary gland. Bacteria which infect the mammary gland are classified into two major categories, contagious or environmental pathogens. Mastitis caused by these pathogens is generally referred to as contagious mastitis or environmental mastitis.
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