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Biomedical subjects

M L Roldán

Publications and source records attributed to M L Roldán.

4 recordsLinked to original sources

Isolation and characterisation of Shiga toxin-producing Escherichia coli O157:H7 from calves in Argentina.

Four hundred and twenty-two calves were examined for intestinal carriage of Shiga toxin-producing Escherichia coli O157:H7 using conventional plating. Two (0.5%) E. coli O157 were recovered. They were compared with 96 Argentine strains of different origin by pulsed-field gel electrophoresis, phage typing and PCR-RFLP of stx2 genes. One strain isolated from a calf, was closely related with 18 strains of clinical origin.

Animals↗

[Fahr disease and idiopathic pulmonary hemosiderosis in a 10 year old patient (author's transl)].

A 10 year old patient with acute respiratory insufficiency, dispnea, cough, temperature, cyanosis and hemoptisis is presented. Cranial X-rays and scanning revealed basal ganglia calcifications. Intense hypocalcemia and hyperphosphoremia were found as well as response to parathyroid hormone administration. A diagnosis of primary hypoparathyroidism and idiopathic pulmonary hemosiderosis was made. These two diseases are associated and related because of the autoimmune nature of both of them.

Calcinosis↗

Current status of active immunization procedures.

A review of the present status of the principal active immunization procedures used in pediatric ages is presented. Great advances are emphasized in smallpox, diphtheria, tetanus, poliomyelitis, measles, rubella, etc. Others less effective vaccine or those at an experimental stage, are also described. A vaccination calendar is also presented.

Child↗