Publications by authors named "Paulino Tamay Segovia"

Article Synopsis
  • Cutaneous leishmaniasis accounts for 99% of leishmaniasis cases in Mexico and typically affects people in rural areas, but a case in Campeche State marks a first for urban transmission.* -
  • A 75-year-old man was misdiagnosed with a bacterial infection before a skin lesion on his ear was identified as leishmaniasis, confirmed through tissue testing that detected Leishmania amastigotes.* -
  • The case highlights the need for awareness of leishmaniasis in urban settings and signals a shift in understanding its transmission in non-endemic areas of Mexico.*
View Article and Find Full Text PDF

: Localized cutaneous leishmaniasis is a neglected vector-borne disease that has become a serious public health problem in the Yucatan Peninsula. Although more than 60% of cases originate from the state of Quintana Roo, it is one of the least explored areas in terms of incriminating vectors of the Leishmania parasite. Additionally, cases of leishmaniasis have increased substantially in that region in recent years.

View Article and Find Full Text PDF

Environmental changes triggered by deforestation, urban expansion and climate change are present-day drivers of the emergence and reemergence of leishmaniasis. This review describes the current epidemiological scenario and the feasible influence of environmental changes on disease occurrence in the state of Yucatan, Mexico. Relevant literature was accessed through different databases, including PubMed, Scopus, Google, and Mexican official morbidity databases.

View Article and Find Full Text PDF

Deer encompass a group of large-sized vertebrates that serve as hosts for a wide variety of ectoparasites, mainly ticks. In Mexico, ticks have relevance as vectors of pathogenic microorganisms, and 20 species of hard ticks are associated with four species of deer, although only a single study has been conducted to detect bacterial agents associated with ticks from deer in the country. In February, 2019 three white-tailed deers (Odocoileus virginianus) were hunted from the locality of Chiná from the municipality of Campeche, Mexico.

View Article and Find Full Text PDF

The genus Rickettsia encompasses 35 valid species of intracellular, coccobacilli bacteria that can infect several eukaryotic taxa, causing multiple emerging and re-emerging diseases worldwide. This work aimed to gather and summarise the current knowledge about the genus Rickettsia in Mexico, updating the taxonomy of the bacteria and their hosts by including all the records available until 2020, to elucidate host-parasite relationships and determine the geographical distribution of each Rickettsia species present in the country. Until now, 14 species of Rickettsia belonging to four groups have been recorded in Mexico.

View Article and Find Full Text PDF

Introduction: Triatomine bugs are vectors of Trypanosoma cruzi, the etiological agent of Chagas disease.

Methods: Triatomine bugs were collected and identified following established protocols. In addition, infection with T.

View Article and Find Full Text PDF
Article Synopsis
  • * The first organized study on this disease didn't happen until 1996, focusing on two coastal regions in Mexico.
  • * A recent case in the state of Campeche involved a male patient presenting symptoms like fever and a rash, along with prior exposure to Rickettsia reservoirs.
View Article and Find Full Text PDF

Among the infectious diseases characterized by a febrile picture are: dengue, leptospirosis, rickettsiosis and salmonellosis, among others. The objective of this study was to identify IgM antibodies against dengue and Leptospira in febrile patientes. The seropositivity for IgM antibodies to dengue was 34%; 26.

View Article and Find Full Text PDF

Male of 52 year old with chronic alcoholism and ulcerated lesion on the face and disseminated nodular skin lesions, underwent to biopsy of ulcer edges where was observed a concomitant epidermoid malignancy with Leishmania (L.). Besides others, biopsies of nodule in the periumbilical region, lymph node and bone marrow were assayed, and all biopsies had abundant amastigotes.

View Article and Find Full Text PDF

Leptospira reactivity in stray and household dogs in Campeche as well as associated risk factors to the seropositivity in household dogs have been herein determined. The survey included 323 dogs, 142 of which were stray dogs and 181 household dogs. Nine Leptospira interrogans serovars were tested by the microagglutination test.

View Article and Find Full Text PDF

Trypanosoma cruzi was isolated from a 20 year old male with no evidence of antibodies against this parasite until 12 months after the isolation and with no electrocardiographic alterations. The isolated sample obtained was characterized as T. cruzi I through PCR mini-exon.

View Article and Find Full Text PDF

Triatoma dimidiata is the only reported Chagas disease vector in Campeche, Mexico. The purpose of this study was to determine the genetic variability of vectors from Campeche coastal and rain forest areas and establish a phylogenetic relationship with other T. dimidiata populations by analyzing the internal transcribed spacer-2 (ITS-2) region.

View Article and Find Full Text PDF