Publications by authors named "Lydia Mota-de-la-Garza"
In countries such as Mexico, brucellosis is still an important public health problem due to the consumption of non-pasteurized milk and dairy products, contaminated with Brucella spp. The aim of this study was to look into the survival of Brucella abortus during fermentation of milk with a yoghurt starter culture and storage at refrigeration temperature. Sterile skim milk was inoculated with B.
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- The study examined the presence of Aeromonas spp in wastewater-treatment plants (WWTPs) and drinking-water plants (DWPs) in Mexico City, using samples collected over a year.
- A total of 144 samples from WWTPs and 96 from DWPs were analyzed, with Aeromonas spp found in 31% of the samples from both sources.
- The findings indicated that many WWTP samples failed to meet Mexican standards and suggested increasing residual chlorine levels in drinking water to better control Aeromonas spp contamination.
Two multiplex polymerase chain reactions were developed for the detection of enterotoxigenic strains of Staphylococcus aureus: one multiplex reaction for the simultaneous detection of enterotoxigenic strains type A (entA), type B (entB), and type E (entE) and another for the simultaneous detection of enterotoxigenic strains type C (entC) and type D (entD). Both reactions were standardized with the use of the reference enterotoxigenic strains of S. aureus: FRI 722, producer of staphylococcal enterotoxin (SE) type A (SEA); FRI 1007, producer of SEB; FRI 137, producer of SEC1; FRI 472, producer of SED; and FRI 326, producer of SEE.
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