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White spot syndrome virus and Enterocytozoon hepatopenaei in shrimp farms in Costa Rica
(Universidad de Costa Rica, 2020-03-04)
Introduction. The white spot syndrome virus (WSSV) causes systemic destruction of ectodermal and mesodermal tissues in shrimp and can cause 100 % mortality. Enterocytozoon hepatopenaei (EHP) is an intracellular ...
A Sinorhizobium meliloti and Agrobacterium tumefaciens ExoR ortholog is not crucial for Brucella abortus virulence
(PLOS ONE, 2021-08-13)
Brucella is a facultative extracellular-intracellular pathogen that belongs to the Alphaproteo-
bacteria class. Precise sensing of environmental changes and a proper response mediated
by a gene expression regulatory ...
In vivo animal models confrm an increased virulence potential and pathogenicity of the NAP1/RT027/ST01 genotype within the Clostridium difcile MLST Clade 2
(BioMed Central, 2020-09-22)
Background: Based on MLST analyses the global population of C. difcile is distributed in eight clades, of which
Clade 2 includes the “hypervirulent” NAP1/RT027/ST01 strain along with various unexplored sequence types ...
Seroprevalence of porcine reproductive and respiratory syndrome virus on swine farms in a tropical country of the Middle Americas: the case of Costa Rica
(Springer Nature, 2021-08-18)
Porcine reproductive and respiratory syndrome virus (PRRSV) causes signifcant economic losses to the swine industry worldwide. Little is known regarding the epidemiology of this infection in tropical countries. To address ...
Serosurvey of nonhuman primates in Costa Rica at the human–wildlife interface reveals high exposure to flaviviruses
(Multidisciplinary Digital Publishing (MDPI), 2021-06-15)
Arthropod-borne viruses belonging to the flavivirus genus possess an enormous relevance
in public health. Neotropical non-human primates (NPs) have been proposed to be susceptible to
flavivirus infections due to their ...
Phylogenetic and Mutation Analysis of the Venezuelan Equine Encephalitis Virus Sequence Isolated in Costa Rica from a Mare with Encephalitis
(MDPI, 2022-05-28)
Venezuelan Equine Encephalitis virus (VEEV) is an arboviral pathogen in tropical America
that causes lethal encephalitis in horses and humans. VEEV is classified into six subtypes (I to VI).
Subtype I viruses are divided ...
Serosurvey in two rural areas evidences recent and previously undetected WNV and SLEV circulation in Costa Rica
(medRxiv preprint, 2021-09-13)
West Nile virus (WNV) and Saint Louis encephalitis virus (SLEV) share similar virus transmission cycles that involve birds as amplifiers and mosquitoes as vectors. Mammals, including humans, are dead-end-hosts that may be ...
Impacto de la Pandemia por SARS-CoV2 sobre la Educación
(Universidad Nacional, Costa Rica, 2020-12-01)
Se describe el impacto de la pandemia por SARS-CoV2 sobre la educación y se propone
algunos escenarios donde la Universidad Nacional puede contribuir a mitigar el daño y a participar
en la construcción del escenario ...
Detection of Venezuelan Equine Encephalitis Virus from Brain Samples of Equines with Encephalitis
(MDPI, 2023)
Alphavirus species are globally distributed zoonoses primarily transmitted by arthropods. The Venezuelan equine encephalitis virus (VEEV) and Eastern equine encephalitis virus (EEEV) are endemic in Costa Rica. This study ...
Seroprevalence and detection of bovine leukosis virus in semen from breeding bulls in Costa Rica
(Springer Nature, 2023-09-30)
Bovine leukemia virus (BLV) causes enzootic bovine leukosis, a persistent infection and the most important neoplastic disease
in cattle. It is spread primarily by transferring infected lymphocytes through blood from ...