Cigarette smoking appears to be a risk factor for tuberculosis infection, according to findings from a review of the literature and pooled analysis of studies,Kirk R.Smith,of the University of California ,Berkeley, and colleagues searched eight databases for relevant articles on the topic and identified 24 that met their inclusion criteria. Taken together, the data point to a marked increased the relative risk of TB infection and disease among current and former smokers compared with nonsmokers. There did not appear to be an increased relative risk for death from TB in association with smoking in people with active tuberculosis, the researchers note.
Causes Parasites External parasites are notorious for causing alopecia in dogs. Ticks, lice, fleas and mites can all cause intense itching and scratching, which leads to hair loss. Mange (a skin disease) may also cause localised to generalised hair loss. Fungal infections Fungal infections of the skin (called ('Dermatophytosis') can cause partial to complete alopecia with scaling and redness. Some fungal infections are zoonotic, which means that they have the potential to cause skin lesions in people as well. Bacterial infections Bacterial skin infections can cause alopecia with redness, skin crusting and circular patterns of hair loss. Bacterial folliculitis is the most common cause of multi focal alopecia. Allergies Allergic pets have itchy skin, and in response they scratch or chew out their hair. Pets can be allergic to: 1. Foods- Grains (wheat, soy, corn, pork, meat, fish, milk, yeast. 2. Contact allergies- Walking through grass, chemically treated floors or ...
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