Wszystkie pola: seroprevalence

Skocz do pozycji: 1.

Tytuł:: Feline ocular toxoplasmosis: seroprevalence, diagnosis and treatment outcome of 60 clinical cases
Autorzy:: Ali, K.M.
Abu-Seida, A.M.
Abuowarda, M.
Tematy:: cats
chorioretinitis
keratitis
seroprevalence
Toxoplasma gondii
uveitis; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/2087214.pdf Link otwiera się w nowym oknie
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Seroprevalence of anti-HAV total antibodies among workers in wastewater treatment plants
Autorzy:: Toseva, Elka I.
Atanasova, Mariya V.
Turnovska, Tanya H.
Tematy:: anti-HAV total antibodies
immunization
Hepatitis A
seroprevalence
wastewater
workers; Pokaż więcej
Wydawca:: Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Powiązania:: https://bibliotekanauki.pl/articles/2159910.pdf Link otwiera się w nowym oknie
Opis:: Objectives Data on high frequency of hepatitis A virus (HAV) antibodies for wastewater treatment staff is contradictory. Literature lacks data on the seroprevalence of antibodies to HAV (anti-HAV) among workers in wastewater treatment plants (WWTPs) in Bulgaria. The aim of this study is to establish a specific humoral immune response to hepatitis A virus – anti-HAV total antibodies among staff in WWTPs. Material and Methods A complex study of health and working conditions included 110 subjects working in 3 WWTPs in Bulgaria (74% of all workers in the 3 studied WWTPs and 20% of all employees in Bulgaria registered in 2014 under the wastewater collection, discharge and treatment code of economic activity). Workers had been differentiated in 3 groups on the basis of their occupational work: operators, support staff and other workers exposed to biological agents. Venous blood from all 110 subjects was tested once for carriers of HAV antibodies. Results Anti-HAV total antibodies were found for 52.7% of workers in WWTPs. There is a positive association between activity performed in WWTPs (operators, maintenance personnel and others exposed) and a positive one for the presence of anti-HAV (Chi² = 6.882, df = 2, p = 0.032). Odds ratio (OR) for hepatitis A increases 2.9 times in the group of operators vs. others exposed to biological agents in WWTPs (OR = 2.914, 95% confidence interval (CI): 1.149–7.393, Fisher’s p = 0.039). Odds ratio for hepatitis A increases 4.3 times in the group of support staff from WWTPs vs. others exposed to biological agents in WWTP (OR = 4.295, 95% CI: 1.075–17.167, Fisher’s p = 0.049). Conclusions Higher frequency of anti-HAV antibodies among operators and maintenance personnel at WWTPs has been established as compared to other workers exposed to biological agents in WWTPs. There is a positive association between increasing age of the workers and the presence of anti-HAV. Int J Occup Med Environ Health 2018;31(3):307–315
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Seroprevalence of Bordetella pertussis antibodies among a group of young adults
Autorzy:: Skiba, A.
Raman, S.
Rzucidlo, I.
Sereda, D.
Koziol, M.M.
Tematy:: seroprevalence
Bordetella pertussis
antibody
pertussis
respiratory system
adolescent
young adult; Pokaż więcej
Wydawca:: Instytut Medycyny Wsi
Powiązania:: https://bibliotekanauki.pl/articles/2098551.pdf Link otwiera się w nowym oknie
Opis:: Introduction. Bordetella pertussis is a Gram-negative rod which attacks the respiratory system and causes whooping cough disease. Despite the high percentage of childhood vaccination amongst the population an increasing number of pertussis cases have been observed over time, especially among adolescents and young adults. Objective. The aim of the study was to analyze the concentration of IgG anti-PT Bordetella antibodies in the serum of young adults in the aspect of maintaining immunity. Materials and method. The study group consisted of 30 patients, medical students aged 21–26 years. They were interviewed with a questionnaire, which asked about their general health, medications taken, basic information about whooping cough, or vaccination status against B. pertussis. The anti-PT Bordetella levels were measured in the collected serum by a commercial ELISA kit (enzyme-linked immunosorbent assay). Results. All patients had previously received a mandatory vaccination for pertussis as a child, and 36.6%had received a booster dose after the age of 18. The total average antibody level was 13.977 IU/mL (range: <5.00 – 50.74) and 40% of samples had a very low concentration (<5 IU/mL). Conclusions. Current findings suggest that post-vaccine immunity decreases over time, while infection susceptibility among younger age groups who have not yet been fully immunized has increased. Methods that could prevent and enable risk stratification of whooping cough include the screening test for anti-PT Bordetella antibody, the improvement of diagnostics, and an additional booster dose.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Seroprevalence of Toxoplasma gondii in wild boars [Sus scrofa] in the Slovak Republic
Autorzy:: Antolova, D
Reiterova, K.
Dubinsky, P.
Tematy:: parasite
toxoplasmosis
wild boar
Toxoplasma gondii
Sus scrofa
Slovak Republic
seroprevalence
protozoan parasite; Pokaż więcej
Wydawca:: Instytut Medycyny Wsi
Powiązania:: https://bibliotekanauki.pl/articles/49413.pdf Link otwiera się w nowym oknie
Opis:: Toxoplasma gondii is a protozoan parasite of great medical and veterinary importance. The aim of this study was to determine the seroprevalence of toxoplasmosis in wild boars hunted in the Slovak Republic in 2003. Examination of 320 wild boars revealed a seroprevalence of 8.1%. The majority of seropositive wild boars came from the north-western and southern regions of Slovakia. This study indicates that T. gondii infection is common in wild boars in the Slovak Republic, underlines its zoonotic potential and the importance of high standards of hygiene during the handling of game.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Molecular characterization and seroprevalence of Echinococcus granulosus in wild boars (Sus scrofa) in south-western Iran
Autorzy:: Sarkari, B.
Mansouri, M.
Khabisi, S.A.
Mowlavi, G.
Tematy:: molecular characteristics
seroprevalence
Echinococcus granulosus
wild boar
genotype
Sus scrofa
Iran; Pokaż więcej
Wydawca:: Polskie Towarzystwo Parazytologiczne
Powiązania:: https://bibliotekanauki.pl/articles/5608.pdf Link otwiera się w nowym oknie
Opis:: This study presents the first molecular and serological evaluation of Echinococcus granulosus infections in wild boars in Iran. Twenty five wild boars were collected in south-western Iran, during authorized hunting program, from March to October 2013, necropsied and examined for E. granulosus infection. Furthermore, seroprevalence of cystic echinococcosis in hunted boars was evaluated by an ELISA system. A fertile hydatid cyst due to E. granulosus was detected in the lung of one of the animals. Genotype analysis of the isolate was determined by analyzing a mitochondrial gene, cytochrome C oxidase subunit 1 (co1). DNA was extracted from the cyst sample and polymerase chain reaction amplification and DNA sequencing of the specific region of the co1 gene was performed. Molecular evaluation confirmed the presence of a sheep strain, the G1 genotype, in the wild boar in south-western Iran. This is the first report of the presence of G1 genotype of E. granulosus in wild boar in Iran. Serological evaluation of hydatid cyst by antigen-B ELISA revealed E. granulosus antibodies in 5 (20%) of 25 wild boars. A statistically significant difference was observed between the prevalence of E. granulosus antibodies and gender while the difference between the seroprevalence of E. granulosus and age was insignificant. Findings of this study might have important implications for the prevention and control of cystic echinococcosis.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Seroprevalence of BHV-1 (bovine herpesvirus type 1) among non-vaccinated dairy cattle herds with respiratory disorders
Autorzy:: Rypula, K.
Ploneczka-Janeczko, K.
Kita, J.
Kumala, A.
Zmudzinski, J.F.
Tematy:: seroprevalence
bovine herpesvirus type 1
non-vaccinated animal
dairy cattle
herd
respiratory disorder
ELISA test
seroconversion; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/30913.pdf Link otwiera się w nowym oknie
Opis:: The objective of this study was to estimate a herd-level seroprevalence of bovine herpesvirus type 1 (BHV-1) in herds with clinical symptoms of the respiratory tract. Eighty-three herds with suspected BHV-1 infection were selected and divided into two categories with respect to their size: small (n=27) and large herds (n=56). Samples were collected from calves, heifers and cows older than 24 months. Seroprevalence was determined using the gB ELISA test. The herd level seroprevalence was estimated as 53% (44/83) in the tested herds, 11.1% (3/27) in the small herds and 73.2% (41/56) in the large herds. Our study suggests that the current biosecurity measures still warrant improvement.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Hepatitis A seroprevalence in Erzurum, Turkey
Autorzy:: Yilmaz, A.
Tematy:: Hepatitis A
HAV IgG
HAV IgM
risk factor
prevalence; Pokaż więcej
Wydawca:: Instytut Medycyny Wsi
Powiązania:: https://bibliotekanauki.pl/articles/2085946.pdf Link otwiera się w nowym oknie
Opis:: Introduction and objective. Hepatitis A Virus (HAV), reportedly the most common cause of acute viral hepatitis in developing countries, infects millions of people worldwide each year. The aim of the study is to investigate the seropositivity of anti-hepatitis A virus (HAV) IgG and IgM in all age groups in Erzurum, and to determine the effect of various factors such as age, gender, climatic conditions and HAV vaccination (included in 2012 in the National Immunization Schedule on seroprevalence) on the seropositivity. Materials and method. The serological results of 25,007 individuals referred to Erzurum Public Health Microbiology Laboratory between January 2015 – December 2018 were retrospectively reviewed to test for the presence of anti-HAV IgG and IgM. The patient ages were 0–93 years. Serum samples were analyzed by ELISA. S/CO values of ≥1.00 and >1.21 were considered positive for anti-HAV IgG and IgM, respectively; results below this value were considered negative. Results. Anti-HAV IgG and IgM seropositivities were 87.3% and 0.2%, respectively. Anti-HAV IgG prevalence – 88.5% and 86.4%, anti-HAV IgM positivity – 0.1% and 0.3% in men and women. Anti-HAV IgG seroprevalence – 87%, 73.2%, 58.7%, 75.2%, 86.1%, 89.8%, 96.1%, 99.1%, 99.1% and 99.3%, respectively, at 0–4, 5–9 10–14, 15–19, 20–24, 25–29, 30–39, 40–49, 50–59 and >60 age groups. Anti-HAV IgM seropositivity – 0, 0.1%, 0.7%, 0.7%, 0.3%, 0, 0.1%, 0.2%, 0.1%, and 0.2%, respectively, in the same age groups. Anti-HAV IgM positivity was the highest in November – 36(0.97%. Conclusion. In Erzurum, anti-HAV IgG prevalence is tremendously high, whereas prevalence of anti-HAV IgM is exceptionally low, especially in the paediatric age group. Therefore, HAV vaccine is provided free of charge in Turkey, including Erzurum, since 2012.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Seroprevalence and occupational risk survey for Coxiella burnetii among exposed workers in Sicily, Southern Italy
Autorzy:: Fenga, Concettina
Gangemi, Silvia
De Luca, Annamaria
Calimeri, Sebastiano
Lo Giudice, Daniela
Pugliese, Michela
Licitra, Francesca
Alibrandi, Angela
Costa, Chiara
Tematy:: seroprevalence
Coxiella burnetii
occupational hazard
anthropozoonosis
health surveillance
prevention; Pokaż więcej
Wydawca:: Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Powiązania:: https://bibliotekanauki.pl/articles/2177166.pdf Link otwiera się w nowym oknie
Opis:: Objectives The aim of this survey was to assess the seroprevalence of antibodies against Coxiella burnetii (C. burnetii) in subjects at risk of exposure in Sicily, Southern Italy. Material and Methods Prevalence of IgG antibodies to C. burnetii phase II antigens was evaluated by ELISA in a group of 140 workers at risk of exposure (38 veterinarians, 38 slaughterhouse workers, 44 livestock handlers, 20 laboratory and technical personnel) included in a medical surveillance program and in 42 control subjects. Positive samples were classified as suggestive of prior exposure to C. burnetii. Results Antibodies against C. burnetii were detected in 88 out of 140 (62.9%) exposed workers and in 6 out of 42 (14.3%) subjects of the control group. The variables evaluated did not seem to have a significant effect on seropositivity to Coxiella with the exception of symptoms in the last 6 months preceding the survey. Conclusions Our study demonstrated a high seroprevalence of C. burnetii in the group of exposed workers in comparison to non-exposed subjects of the control group. Clinical illness appears to be rare; nevertheless, physicians should consider Q fever in patients with compatible symptoms and occupational exposure to animals and their products. As aerosols represent the main route of infection in animals and humans, these workers are strongly advised to wear respiratory masks. In addition, occupational physicians should consider routine serologic evaluation and vaccination of occupationally exposed workers.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Low seroprevalence of Trypanosoma cruzi infection and chronic chagasic cardiomyopathy in a region with abundance of triatomine vectors in Yucatan Peninsula of Mexico
Autorzy:: Monteon, V.
Solis-Oviedo, R.
Lopez, R.
Hernandez, O.
Tellez, C.A.
Tematy:: seroprevalence
Trypanosoma cruzi
parasitic infection
chronic Chagas cardiomyopathy
Chagas disease
triatomine vector
Yucatan Peninsula
Mexico; Pokaż więcej
Wydawca:: Polskie Towarzystwo Parazytologiczne
Powiązania:: https://bibliotekanauki.pl/articles/5865.pdf Link otwiera się w nowym oknie
Opis:: The Yucatan Peninsula of Mexico is endemic with Chagas disease. The main vector responsible for Trypanosoma cruzi transmission is Triatoma dimidiata which is abundant in domestic, peridomestic and sylvan cycles. The abundance of vectors favours T. cruzi transmission and is a high risk for developing chronic chagasic cardiomyopathy (CCC). In the past 10 years, little information was available on parasite seroprevalence and the prevalence of CCC in the Yucatan Peninsula. In the present work, we studied two Mayan communities with a high abundance of T. dimidiata and a random serial sample of 233 patients with an altered electrocardiogram or cardiac failure admitted to the Regional Hospital. A homemade enzyme-linked immunosorbent assay and indirect immunofluorescence standardized techniques were used to detect anti-T. cruzi IgG. In addition, Mayan volunteers were monitored by electrocardiography. In the Mayan communities, 4.8% (3/63) subjects were positive for T. cruzi antibodies none of them presented electrocardiographic alterations, however in seronegative subjects were detected right or left ventricle hypertrophy in 25% (16/63). A remarkable finding was that 90% of the Mayan population recognized the vector and 65% of them had experienced contact with triatomines bites. At the Regional Hospital 0.42% (1/233) were positive for T. cruzi antibodies showing compatible diagnosis with CCC; the most frequent pathology in this population was hypertension in 65% (151/233) and the less frequent was dilated myocardiopathy 6% (14/233). In conclusion, the prevalence of T. cruzi infection and CCC can be considered low in Yucatan, Mexico.
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Seroprevalence of Neospora caninum in free living and farmed red deer [Cervus elaphus] in Poland
Autorzy:: Gozdzik, K
Jakubek, E.B.
Bjorkman, C.
Bien, J.
Moskwa, B.
Cabaj, W.
Tematy:: Polska
free living red deer
farmed red deer
red deer
Cervus elaphus
seroprevalence
Neospora caninum
ELISA test
immunoblot
animal disease
animal infection; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/32072.pdf Link otwiera się w nowym oknie
Opis:: Serum samples from 47 free living and 106 farmed red deer (Cervus elaphus) from the Mazurian Lake District in north-east Poland were investigated for the presence of antibodies to Neospora caninum. A modified Neospora iscom-ELISA was used for initial screening. All sera with optical density (OD) values exceeding 0.400 absorbance units were further investigated by Western blot analysis. Eighteen sera were positive in both tests. Six of these were from free living and 12 from farmed animals giving prevalence of 13 and 11%, respectively. This is the first report of N. caninum infection in farmed and free-living red deer living in the same region where neosporosis was confirmed in cattle and the first evidence of exposure to the parasite in red deer in Poland.
Dostawca treści:: Biblioteka Nauki

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