Mycobacterium bovis reaction wheal &#x7C; Skin &#x7C; Skin challenge
mycobacterium bovis reaction wheal &#x7c; skin &#x7c; skin challenge
Mycobacterium bovis reaction wheal &#x7C; Skin &#x7C; Skin challenge
mycobacterium bovis reaction wheal &#x7c; skin &#x7c; skin challenge