Browsing by Author "Mahmmod, Yasser S."
Now showing items 1-13 of 13
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A double‐edged sword: Complement component 3 in toxoplasma gondii infection
Huang, Wan‐Yi; Wang, Ya‐Pei; Mahmmod, Yasser S.; Wang, Jun‐Jie; Liu, Tang‐Hui; Zheng, Yu‐Xiang; Zhou, Xue; Zhang, Xiu‐Xiang; Yuan, Zi‐Guo (Proteomics, 2018-12-04) Sanitat AnimalSprague Dawley rats and Kunming (KM) mice are artificially infected with type II Toxoplasma gondii strain Prugniaud (Pru) to generate toxoplasmosis, which is a fatal disease mediated by T. gondii invasion ... -
A transcriptome analysis: Various reasons of adverse pregnancy outcomes caused by acute Toxoplasma gondii Infection
Zhou, Xue; Zhang, Xiu-Xiang; Mahmmod, Yasser S.; Hernandez, Jorge A.; Li, Gui-Feng; Huang, Wan-Yi; Wang, Ya-Pei; Zheng, Yu-Xiang; Li, Xiu-Ming; Yuan, Zi-Guo (Frontiers in Physiology, 2020-02-19) Sanitat AnimalBackground: Toxoplasma gondii (T. gondii) is an obligate intracellular parasite, which can affect the pregnancy outcomes in infected females by damaging the uterus, and the intrauterine environment as ... -
Accuracy of qPCR and bacterial culture for the diagnosis of bovine intramammary infections and teat skin colonisation with Streptococcus agalactiae and Staphylococcus aureus using Bayesian analysis
Svennesen, Line; Mahmmod, Yasser S.; Skjølstrup, Nanna K.; Mathiasen, Louise R.; Katholm, Jørgen; Pedersen, Karl; Klaas, Ilka C.; Nielsen, Søren S. (Preventive Veterinary Medicine, 2018-10-26) Sanitat AnimalStreptococcus agalactiae (Strep. agalactiae) and Staphylococcus aureus (Staph. aureus) are originally regarded as contagious mastitis pathogens, however, both pathogens have recently been isolated from ... -
Association between teat skin colonization and intramammary infection with Staphylococcus aureus and Streptococcus agalactiae in herds with automatic milking systems
Svennesen, Line; Nielsen, Søren S.; Mahmmod, Yasser S.; Krömker, Volker; Pedersen, Karl; Klaas, Ilka C. (Journal of Dairy Science, 2018-11-08) Sanitat AnimalThe objective of this study was to investigate the association between teat skin colonization and intramammary infection (IMI) with Staphylococcus aureus or Streptococcus agalactiae at the quarter level ... -
Communications of Staphylococcus aureus and non-aureus Staphylococcus species from bovine intramammary infections and teat apex colonization
Mahmmod, Yasser S.; Klaas, Ilka Christine; Svennesen, Line; Pedersen, Karl; Ingmer, Hanne (Journal of Dairy Science, 2018-05-16) Sanitat AnimalThe role of non-aureus staphylococci (NAS) in the risk of acquisition of intramammary infections with Staphylococcus aureus is vague and still under debate. The objectives of this study were to (1) ... -
Comparison of phenotypic and genotypic antimicrobial resistance patterns associated with Staphylococcus aureus mastitis in German and Danish dairy cows
Bolte, Josef; Zhang, Yanchao; Wente, Nicole; Mahmmod, Yasser S.; Svennesen, Line; Krömker, Volker (Journal of Dairy Science, 2020-02-20) Sanitat AnimalStaphylococcus aureus is one of the most common pathogens associated with bovine mastitis in Germany and Denmark. Successful therapy is strongly linked to the susceptibility of the pathogen to the ... -
Diagnostic performance of direct and indirect methods for assessing failure of transfer of passive immunity in dairy calves using latent class analysis
Elsohaby, Ibrahim; Mweu, Mariscal M.; Mahmmod, Yasser S.; McClure, J. Trenton; Keefe, Greg P. (Preventive Veterinary Medicine, 2019-02-05) Sanitat AnimalAccurate diagnosis of failure of transfer of passive immunity (FTPI) in newborn calves is an essential component of dairy farm management plan. Several methods (direct and indirect) are available for ... -
Epidemiological and ultrasonographic investigation of bovine fascioliasis in smallholder production system in Eastern Nile Delta of Egypt
El Damaty, Hend M.; Mahmmod, Yasser S.; Gouda, Shaimaa M.; Sobhy, Nader M. (Preventive Veterinary Medicine, 2018-07-18) Sanitat AnimalRegular updating of our knowledge on the epidemiological determinants of bovine fascioliasis is necessary to increase the awareness of the disease's significance and subsequently, improve the control ... -
Immune responses following neonatal vaccination with conserved F4 fragment of VtaA proteins from virulent Glaesserella parasuis adjuvanted with CAF®01 or CDA
López-Serrano, Sergi; Mahmmod, Yasser S.; Christensen, Dennis; Ebensen, Thomas; Guzmán, Carlos A.; Rodriguez, Fernando; Segalés, Joaquim; Aragon, Virginia (Vaccine: X, 2023-06-10) Sanitat AnimalGlaesserella parasuis is a Gram-negative bacterium that colonizes the upper airways of swine, capable of causing a systemic infection called Glässer’s disease. This disease is more frequent in young ... -
Molecular detection of Treponema species organisms in foremilk and udder cleft skin of dairy cows with digital dermatitis
Sobhy, Nader Maher; Mahmmod, Yasser S.; Refaai, Walid; Awad, Ashraf (Tropical Animal Health and Production, 2019-09-13) Sanitat AnimalIdentification of reservoirs and transmission routes of digital dermatitis (DD)-associated Treponema spp. is considered an effective means for controlling DD infection in dairy cows. The objective of ... -
Transcriptomic analysis of reproductive damage in the epididymis of male Kunming mice induced by chronic infection of Toxoplasma gondii PRU strain
Zheng, Yu-Xiang; Zhang, Xiu-Xiang; Hernandez, Jorge A.; Mahmmod, Yasser S.; Huang, Wan-Yi; Li, Gui-Feng; Wang, Ya-Pei; Zhou, Xue; Li, Xiu-Ming; Yuan, Zi-Guo (Parasites and Vectors, 2019-11-08) Sanitat AnimalBACKGROUND: Some researchers have reported that Toxoplasma gondii can cause serious reproductive impairment in male animals. Specifically, T. gondii destroy the quality of sperm in the epididymis, which ... -
Typeability of MALDI-TOF assay for identification of non-aureus staphylococci associated with bovine intramammary infections and teat apex colonization
Mahmmod, Yasser S.; Nonnemann, Bettina; Svennesen, Line; Pedersen, Karl; Klaas, Ilka Christine (Journal of Dairy Science, 2018-08-09) Sanitat AnimalMatrix-assisted laser desorption/ionization time of flight (MALDI-TOF), a culture-dependent assay, has recently been implemented for routine identification of non-aureus staphylococci (NAS) species from ... -
Variations in association of nasal microbiota with virulent and non-virulent strains of Glaesserella (Haemophilus) parasuis in weaning piglets
Mahmmod, Yasser S.; Correa-Fiz, Florencia; Aragon, Virginia (Veterinary Research, 2020-02-03) Sanitat AnimalGlaesserella (formerly Haemophilus) parasuis causes Glässer's disease, which results in high economic loss in the swine industry. To understand the polymicrobial interactions of G. parasuis and the nasal ...