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Hereditary inclusion-body myopathy (h-IBM) is a heterogeneous group of disorders characterized by progressive weakness of some skeletal muscles and pathological feature, intercellular rimmed vacuoles in the muscular filaments. h-IBM is not associated with inflammatory infiltrations and term myopathy is used as opposite to spontaneous inclusion-body myositis. h-IBM is classified into autosomal recessive and autosomal dominant subgroups.

Giardiasis is a cosmopolitan parasitic disease. About 10% of adults and 20% of children in Poland is infected with Giardia lamblia but only a few per cent of cases is symptomatic. Incidence and symptomatology depend upon a number of factors including individual susceptibility. The disease is usually chronic and recurrent and acute form is found in rare cases only. Giardiasis should be suspected in patients with chronic atypical symptoms related to the alimentary tract. Nitroimidasolic compounds are used in the treatment of giardiasis.

Brucellosis is an infectious zoonosis. It is a occupational disease of stock-breeders, workers of slaughter houses and veterinarians. Brucellosis is characterized by a variety of clinical symptoms and involves several organs of the body. Skeletal manifestations often facilitate diagnosis. Difficulties in diagnosis of brucellosis in Poland are resulted from an increased amount of low-symptomatic or asymptomatic cases, a decrease in acute brucellosis and mild course of chronic disease. Therapy is related to the stage of the disease, antibiotics are required in acute brucellosis. Symptomatic treatment with special emphasis to neurological and psychiatric management is used in patients with chronic brucellosis. Early made diagnosis is important because undiagnosed disease leads to severe disability and loss of work ability.