Medio Ambiente En Mexico Wikipedia This stage may last several years and is marked by a more global impairment of cognitive functioning. During this stage, there are changes in higher cortical functioning needed for language, spatial relationships, and problem solving. Six genotypes, or gene combinations, result in four phenotypes, or blood type expressions. ABO antibodies predictably develop in the serum of persons whose red cells lack the corresponding antigen. Persons with type A antigens on their red cells develop type B antibodies; persons with type B antigens develop type A antibodies in their serum; persons with type O blood develop type A and type B antibodies; and persons with type AB blood develop neither A nor B antibodies. The ABO antibodies usually are not present at birth but begin to develop at 3 to 6 months of age and reach maximum levels between the ages of 5 and 10 years. 24 RH TYPES The D antigen of the Rh system is also important in transfusion compatibility and is routinely tested. The Rh type is coded by three gene pairs: C, c; D, d; and E, e. Medio ambiente en mexico wikipedia. Pediatr. 63 264. Noren, E. Depression in primary care: Treatment of major depression. Clinical practice guideline no. 5, 1993. Publication no. 93-0551. 131 8 Ooi, Lorber, Gastroenteritis due to Listeria monocytogenes, Clin. Infect. Dis. 40 13271332. Frye, et al.An outbreak of febrile gastroenteritis associated with delicatessen meat contaminated with Listeria monocytogenes, Clin. Infect. Dis. 35 94394 Riedo, et al.A point-source foodborne listeriosis outbreak: documented incubation period and possible mild illness, Infect. Dis. 170 693696. Salamina, et al.A foodborne outbreak of gastroenteritis involving Listeria monocytogenes, Epidemiol. Infect. 117 429436. Aureli, et al.An outbreak of febrile gastroenteritis associated with corn contaminated by Listeria monocytogenes, Engl. Med. 342 12361241. Schlech 3rd.Listeria gastroenteritis-old syndrome, new pathogen, Engl. Med. 336 130132. Felsenfeld, Diseases of poultry transmissible to man, Iowa State Coll Vet 13 8 Spyrou, Anderson, R.