| [acute trichinosis in children. intrafamilial epidemic outbreak in mexico city]. | four cases of trichinosis found in a family living in iztapalapa, mexico, d.f. are reported. the family reported to frequently eat raw sausage originally from villanueva, zacatecas from which trichinella spiralis larvae were isolated. diagnosis was difficult in the first case since no epidemiological history was associated with the patient, besides the fact that the patient showed no signs of eosinophilia and blood tests were negative. the diagnosis in this case was confirmed through muscular bi ... | 1990 | 2222824 |
| [sanitary quality of ham eaten in mexico city]. | microbiological results of 2,539 hams were analyzed (counts of mesophilic aerobes, salmonella sp. and s. aureus) at the national public health laboratory from 1979 to 1987. in 58.7 percent of the cases the hams were not acceptable for human consumption, due to any of the above mentioned microbiological determinations. the main cause was the finding of high levels of mesophilic aerobes (57.5%), followed by salmonella sp (4.4%) and s. aureus (0.43%). raw, cooked and smoked hams presented the highe ... | 1989 | 2772735 |
| [outbreak of trichinosis occurring in a government office. federal district, mexico, 1985]. | | 1986 | 3961585 |
| isolation of yersinia from raw meat (pork and chicken) and precooked meat (porcine tongues and sausages) collected from commercial establishments in mexico city. | a total of 160 meat product samples were collected from commercial outlets in mexico city to investigate the presence of different species of yersinia by the 4 degrees c enrichment method after 1, 3, 5, and 7 days of incubation using alkaline treatment and isolating in cefsulodin-irgasan-novobiocin and macconkey agars with tween 80. overall, yersinia spp. were isolated from 27% of the samples analyzed, whereas 40% of the raw and only 13% of the precooked samples were contaminated. although 2,970 ... | 2000 | 10772223 |
| tuberculosis and tuberculin quality: best intentions, misleading results. | to compare the performance of three purified protein derivative (ppd) formulations: tubersol (connaught); rt23, statens serum institut (ssi); and rt23, mexico, tested in mexican populations at low and high risk for tuberculosis (tb). | 2001 | 11700874 |
| transmission electron microscopy findings in the respiratory epithelium of guinea pigs exposed to the polluted air of southwest mexico city. | we evaluated the nature and the extent of the damage to the respiratory epithelium of guinea pigs after a 4-month exposure to the mixture of air pollutants in southwest mexico city. guinea pigs were placed outdoors on the roof of our facility, 8 hours daily, from february to may 1995. at the same time, control guinea pigs were kept indoors breathing filtered air. air pollutants, temperature, and humidity data were obtained from the nearest station of the environmental monitoring net. the airways ... | 1999 | 15281245 |
| [diagnostic serology of swine leptospirosis in mexico 1995-2000]. | results obtained from sample testing of 1970 swines from a number of mexican farms were analyzed. such samples had been received in the leptospira lab of universidad autonoma metropolitana de xochimilco from 1995 to 2000. sera with titers equal to or higher than 1:1000 were considered positive; 39,8% of the animals were seropositive (784) and the most frequent serovarieties were bratislava, 22.5%; icterohaemorrhagiae strain palo alto, 14,5%; portland vere strain sinaloa acr, 13,8%; icterohaemorr ... | 2002 | 15846937 |
| risk factors associated with house infestation by the chagas disease vector triatoma pallidipennis in cuernavaca metropolitan area, mexico. | chagas disease caused by infection with trypanosoma cruzi chagas (kinetoplastida: trypanosomatidae) is widespread in mexico, transmitted by various triatomine bugs (hemiptera: reduviidae). the only domestic vector in cuernavaca (population 650 000) is triatoma pallidipennis (ståhl) with t. cruzi seroprevalence ranging from 1% to 9% in the resident human population. we surveyed possible risk factors for t. pallidipennis infestation at cuernavaca (altitude 1200-2200 m) on south-western slopes of t ... | 2005 | 15958028 |
| porcine circovirus type 2 antibody detection in backyard pigs from mexico city. | pcv2 antibodies have been found in pigs from all continents. however, this finding has been mainly studied in domestic swine reared under intensive production conditions. mexico city, with a human population over 19 million in 2005, has both urban and rural areas. the pig production in its rural area is based on small family backyard farms. taking into account this rather unique form of rearing pigs, the objective of this study was to determine the seroprevalence in backyard pigs from the rural ... | 2007 | 17157886 |
| pneumonia and respiratory failure from swine-origin influenza a (h1n1) in mexico. | in late march 2009, an outbreak of a respiratory illness later proved to be caused by novel swine-origin influenza a (h1n1) virus (s-oiv) was identified in mexico. we describe the clinical and epidemiologic characteristics of persons hospitalized for pneumonia at the national tertiary hospital for respiratory illnesses in mexico city who had laboratory-confirmed s-oiv infection, also known as swine flu. | 2009 | 19564631 |
| organization of a third-level care hospital in mexico city during the 2009 influenza epidemic. | an outbreak caused by the novel swine-origin influenza a (h1n1) virus was identified in mexico in late march 2009. the objective of this report is to describe the organization of a tertiary care center in mexico city during the contingency. we describe the education program, the hospital organization and triaging, and unforeseen overwhelming circumstances. educational plans were directed to follow standard, contact, and droplet precautions and to condition behavior to avoid touching the eyes, no ... | 2010 | 20304257 |
| effects of long distance transportation and co(2) stunning on critical blood values in pigs. | the aim of the study was to evaluate the effect of two stressful stimuli, long transportation and 80% co(2) stunning on metabolic-physiological variables, hemodynamic and gas exchange in slaughter pigs imported from the u.s. to mexico city with a journey time of 27h, with 8h of lairage at the abattoir. a total of 589 pigs from three genders were monitored. overall results show that both stimuli caused metabolic and physiological disturbance. gilts were more efficient in controlling glycemia afte ... | 2011 | 22155113 |