Infection, dissemination, and transmission of lumpy skin disease virus in Aedes aegypti (Linnaeus), Culex tritaeniorhynchus (Giles), and Culex quinquefasciatus (Say) mosquitoes
This study examined the infection, dissemination, and transmission rates of LSDV in Aedes aegypti, Culex tritaeniorhynchus, and Culex quinquefasciatus following artificial membrane feeding of 102.7, 103.7, 104.7 TCID50/mL LSDV in sheep blood. The results demonstrated that these mosquito species were susceptible to LSDV, with Cx tritaeniorhynchus exhibiting significantly different characteristics from Ae. aegypti and Cx. quinquefasciatus. These three mosquito species were susceptible to LSDV. Ae. aegypti showed it as early as 2 days post-infection (dpi), indicating swift dissemination in this particular species. The extrins...
Source: Acta Tropica - April 5, 2024 Category: Infectious Diseases Authors: Elizabeth Riana Chalida Sri-In Tapanut Songkasupa Lyric C Bartholomay Aunyaratana Thontiravong Sonthaya Tiawsirisup Source Type: research

Molecular detection of blood protozoa and identification of black flies of the Simulium varicorne species group (Diptera: Simuliidae) in Thailand
Acta Trop. 2024 Apr 3;254:107207. doi: 10.1016/j.actatropica.2024.107207. Online ahead of print.ABSTRACTSpecies of the Simulium varicorne group in Thailand have veterinary significance as vectors of haemosporidian parasites. Accurate identification is, therefore, critical to the study of vectors and parasites. We used morphology and molecular markers to investigate cryptic genetic lineages in samples identified as Simulium chumpornense Takaoka & Kuvangkadilok, 2000. We also tested the efficiency of the nuclear internal transcribed spacer 2 (ITS2) marker for the identification of species in this group. Morphological exa...
Source: Acta Tropica - April 5, 2024 Category: Infectious Diseases Authors: Jiraporn Stangarm Ronnalit Mintara Waraporn Jumpato Bhuvadol Gomontean Isara Thanee Komgrit Wongpakam Peter H Adler Weerachai Saijuntha Pairot Pramual Source Type: research

Infection, dissemination, and transmission of lumpy skin disease virus in Aedes aegypti (Linnaeus), Culex tritaeniorhynchus (Giles), and Culex quinquefasciatus (Say) mosquitoes
This study examined the infection, dissemination, and transmission rates of LSDV in Aedes aegypti, Culex tritaeniorhynchus, and Culex quinquefasciatus following artificial membrane feeding of 102.7, 103.7, 104.7 TCID50/mL LSDV in sheep blood. The results demonstrated that these mosquito species were susceptible to LSDV, with Cx tritaeniorhynchus exhibiting significantly different characteristics from Ae. aegypti and Cx. quinquefasciatus. These three mosquito species were susceptible to LSDV. Ae. aegypti showed it as early as 2 days post-infection (dpi), indicating swift dissemination in this particular species. The extrins...
Source: Acta Tropica - April 5, 2024 Category: Infectious Diseases Authors: Elizabeth Riana Chalida Sri-In Tapanut Songkasupa Lyric C Bartholomay Aunyaratana Thontiravong Sonthaya Tiawsirisup Source Type: research

Molecular detection of blood protozoa and identification of black flies of the Simulium varicorne species group (Diptera: Simuliidae) in Thailand
Acta Trop. 2024 Apr 3:107207. doi: 10.1016/j.actatropica.2024.107207. Online ahead of print.ABSTRACTSpecies of the Simulium varicorne group in Thailand have veterinary significance as vectors of haemosporidian parasites. Accurate identification is, therefore, critical to the study of vectors and parasites. We used morphology and molecular markers to investigate cryptic genetic lineages in samples identified as Simulium chumpornense Takaoka & Kuvangkadilok, 2000. We also tested the efficiency of the nuclear internal transcribed spacer 2 (ITS2) marker for the identification of species in this group. Morphological examina...
Source: Acta Tropica - April 5, 2024 Category: Infectious Diseases Authors: Jiraporn Stangarm Ronnalit Mintara Waraporn Jumpato Bhuvadol Gomontean Isara Thanee Komgrit Wongpakam Peter H Adler Weerachai Saijuntha Pairot Pramual Source Type: research

Association between Toxoplasma gondii and gestational diabetes with regard to serum leptin and tumor necrosis factor alpha, a preliminary study
Acta Trop. 2024 Mar 31;254:107204. doi: 10.1016/j.actatropica.2024.107204. Online ahead of print.ABSTRACTGestational diabetes (GDM), the onset of any degree of glucose intolerance during pregnancy, increases a wide range of adverse health outcomes for both the mother and the fetus. The aim of the present study was to evaluate the association of Toxoplasma gondii infection with GDM in a case-control study with regard to the levels of leptin and tumor necrosis factor alpha (TNF-α) as two inflammatory biomarkers. Fifty-one pregnant diabetic cases and 109 controls were selected from a prenatal care clinic of a general hospita...
Source: Acta Tropica - April 2, 2024 Category: Infectious Diseases Authors: Maryam Ansari-Lari Nasrin Kazemipour Elham Yaghoobi Maliheh Masoudian Source Type: research

Cervids as Sentinels for Rickettsia spp. in Portugal
Acta Trop. 2024 Mar 31;254:107202. doi: 10.1016/j.actatropica.2024.107202. Online ahead of print.ABSTRACTCervids are highly exposed to ticks, however, their role in the life cycle of these rickettsiae has not been fully elucidated. Given the expanding distribution and growing population of deer species in Portugal, coupled with their direct and indirect interactions with humans during hunting, it becomes crucial to explore their role as sentinels and potential reservoirs of Rickettsia. The present investigation aimed to detect and evaluate exposure to Rickettsia in free-living deer from Portugal. Blood samples (n = 77) wer...
Source: Acta Tropica - April 2, 2024 Category: Infectious Diseases Authors: Barradas Pf Abrantes Ac Vieira E Brito N Mesquita Jr Source Type: research

Association between Toxoplasma gondii and gestational diabetes with regard to serum leptin and tumor necrosis factor alpha, a preliminary study
Acta Trop. 2024 Mar 31;254:107204. doi: 10.1016/j.actatropica.2024.107204. Online ahead of print.ABSTRACTGestational diabetes (GDM), the onset of any degree of glucose intolerance during pregnancy, increases a wide range of adverse health outcomes for both the mother and the fetus. The aim of the present study was to evaluate the association of Toxoplasma gondii infection with GDM in a case-control study with regard to the levels of leptin and tumor necrosis factor alpha (TNF-α) as two inflammatory biomarkers. Fifty-one pregnant diabetic cases and 109 controls were selected from a prenatal care clinic of a general hospita...
Source: Acta Tropica - April 2, 2024 Category: Infectious Diseases Authors: Maryam Ansari-Lari Nasrin Kazemipour Elham Yaghoobi Maliheh Masoudian Source Type: research

Cervids as Sentinels for Rickettsia spp. in Portugal
Acta Trop. 2024 Mar 31;254:107202. doi: 10.1016/j.actatropica.2024.107202. Online ahead of print.ABSTRACTCervids are highly exposed to ticks, however, their role in the life cycle of these rickettsiae has not been fully elucidated. Given the expanding distribution and growing population of deer species in Portugal, coupled with their direct and indirect interactions with humans during hunting, it becomes crucial to explore their role as sentinels and potential reservoirs of Rickettsia. The present investigation aimed to detect and evaluate exposure to Rickettsia in free-living deer from Portugal. Blood samples (n = 77) wer...
Source: Acta Tropica - April 2, 2024 Category: Infectious Diseases Authors: Barradas Pf Abrantes Ac Vieira E Brito N Mesquita Jr Source Type: research

Association between Toxoplasma gondii and gestational diabetes with regard to serum leptin and tumor necrosis factor alpha, a preliminary study
Acta Trop. 2024 Mar 31;254:107204. doi: 10.1016/j.actatropica.2024.107204. Online ahead of print.ABSTRACTGestational diabetes (GDM), the onset of any degree of glucose intolerance during pregnancy, increases a wide range of adverse health outcomes for both the mother and the fetus. The aim of the present study was to evaluate the association of Toxoplasma gondii infection with GDM in a case-control study with regard to the levels of leptin and tumor necrosis factor alpha (TNF-α) as two inflammatory biomarkers. Fifty-one pregnant diabetic cases and 109 controls were selected from a prenatal care clinic of a general hospita...
Source: Acta Tropica - April 2, 2024 Category: Infectious Diseases Authors: Maryam Ansari-Lari Nasrin Kazemipour Elham Yaghoobi Maliheh Masoudian Source Type: research

Cervids as Sentinels for Rickettsia spp. in Portugal
Acta Trop. 2024 Mar 31;254:107202. doi: 10.1016/j.actatropica.2024.107202. Online ahead of print.ABSTRACTCervids are highly exposed to ticks, however, their role in the life cycle of these rickettsiae has not been fully elucidated. Given the expanding distribution and growing population of deer species in Portugal, coupled with their direct and indirect interactions with humans during hunting, it becomes crucial to explore their role as sentinels and potential reservoirs of Rickettsia. The present investigation aimed to detect and evaluate exposure to Rickettsia in free-living deer from Portugal. Blood samples (n = 77) wer...
Source: Acta Tropica - April 2, 2024 Category: Infectious Diseases Authors: Barradas Pf Abrantes Ac Vieira E Brito N Mesquita Jr Source Type: research

Dermacentor (Indocentor) auratus Supino 1897: Potential geographic range, and medical and veterinary significance
Acta Trop. 2024 Mar 28;254:107197. doi: 10.1016/j.actatropica.2024.107197. Online ahead of print.ABSTRACTDermacentor (Indocentor) auratus Supino, 1897 occurs in many regions of Southeast Asia and South Asia. In many regions of Southeast Asia and South Asia, targeted tick sampling and subsequent screening of collected D. auratus ticks have detected pathogenic bacteria and viruses in D. auratus. These disease-causing pathogens that have been detected in D. auratus include Anaplasma, Bartonella, Borrelia, Rickettsia (including spotted fever group rickettsiae), African swine fever virus, Lanjan virus, and Kyasanur forest disea...
Source: Acta Tropica - March 30, 2024 Category: Infectious Diseases Authors: Ernest J M Teo Dmitry A Apanaskevich Stephen C Barker Ryo Nakao Source Type: research

Ready for renascence in mosquito: The regulation of gene expression in Plasmodium sexual development
Acta Trop. 2024 Mar 28;254:107191. doi: 10.1016/j.actatropica.2024.107191. Online ahead of print.ABSTRACTMalaria remains one of the most perilous vector-borne infectious diseases for humans globally. Sexual gametocyte represents the exclusive stage at which malaria parasites are transmitted from the vertebrate to the Anopheles host. The feasible and effective approach to prevent malaria transmission is by addressing the sexual developmental processes, that is, gametocytogenesis and gametogenesis. Thus, this review will comprehensively cover advances in the regulation of gene expression surrounding the transmissible stages,...
Source: Acta Tropica - March 30, 2024 Category: Infectious Diseases Authors: Cong Liu Jingjing Tang Kejia Liang Peng Liu Zhenkui Li Source Type: research

Dermacentor (Indocentor) auratus Supino 1897: potential geographic range, and medical and veterinary significance
Acta Trop. 2024 Mar 28:107197. doi: 10.1016/j.actatropica.2024.107197. Online ahead of print.ABSTRACTDermacentor (Indocentor) auratus Supino, 1897 occurs in many regions of Southeast Asia and South Asia. In many regions of Southeast Asia and South Asia, targeted tick sampling and subsequent screening of collected D. auratus ticks have detected pathogenic bacteria and viruses in D. auratus. These disease-causing pathogens that have been detected in D. auratus include Anaplasma, Bartonella, Borrelia, Rickettsia (including spotted fever group rickettsiae), African swine fever virus, Lanjan virus, and Kyasanur forest disease v...
Source: Acta Tropica - March 30, 2024 Category: Infectious Diseases Authors: Ernest J M Teo Dmitry A Apanaskevich Stephen C Barker Ryo Nakao Source Type: research

Ready for Renascence in Mosquito: The Regulation of Gene Expression in Plasmodium Sexual Development
Acta Trop. 2024 Mar 28:107191. doi: 10.1016/j.actatropica.2024.107191. Online ahead of print.ABSTRACTMalaria remains one of the most perilous vector-borne infectious diseases for humans globally. Sexual gametocyte represents the exclusive stage at which malaria parasites are transmitted from the vertebrate to the Anopheles host. The most effective approach to prevent malaria transmission is by addressing the sexual developmental processes, that is, gametocytogenesis and gametogenesis. Thus, this review will comprehensively cover advances in the regulation of gene expression surrounding the transmissible stages, including e...
Source: Acta Tropica - March 30, 2024 Category: Infectious Diseases Authors: Cong Liu Jingjing Tang Kejia Liang Peng Liu Zhenkui Li Source Type: research

Dermacentor (Indocentor) auratus Supino 1897: potential geographic range, and medical and veterinary significance
Acta Trop. 2024 Mar 28:107197. doi: 10.1016/j.actatropica.2024.107197. Online ahead of print.ABSTRACTDermacentor (Indocentor) auratus Supino, 1897 occurs in many regions of Southeast Asia and South Asia. In many regions of Southeast Asia and South Asia, targeted tick sampling and subsequent screening of collected D. auratus ticks have detected pathogenic bacteria and viruses in D. auratus. These disease-causing pathogens that have been detected in D. auratus include Anaplasma, Bartonella, Borrelia, Rickettsia (including spotted fever group rickettsiae), African swine fever virus, Lanjan virus, and Kyasanur forest disease v...
Source: Acta Tropica - March 30, 2024 Category: Infectious Diseases Authors: Ernest J M Teo Dmitry A Apanaskevich Stephen C Barker Ryo Nakao Source Type: research