Search results for "Transmitted"
showing 10 items of 100 documents
Geographical distribution and oncogenic risk association of human papillomavirus type 58 E6 and E7 sequence variations.
2013
Human papillomavirus (HPV) 58 accounts for a notable proportion of cervical cancers in East Asia and parts of Latin America, but it is uncommon elsewhere. The reason for such ethnogeographical predilection is unknown. In our study, nucleotide sequences of E6 and E7 genes of 401 HPV58 isolates collected from 15 countries/cities across four continents were examined. Phylogenetic relationship, geographical distribution and risk association of nucleotide sequence variations were analyzed. We found that the E6 genes of HPV58 variants were more conserved than E7. Thus, E6 is a more appropriate target for type-specific detection, whereas E7 is more appropriate for strain differentiation. The frequ…
Infezione orale da Human papillomavirus: dalla verruca al carcinoma orale. Epidemiologia, clinica, prevenzione e terapia
2015
Riasunto Obiettivi Prendere in esame l’epidemiologia e le manifestazioni cliniche dell’infezione orale da Human papillomavirus (HPV), con particolare attenzione alle lesioni con potenziale oncologico maligno. Materiali e metodi E stata condotta una revisione sistematica della letteratura finalizzata a descrivere lo stato dell’arte in merito all’infezione da HPV nella mucosa orofaringea e alle relative modalita di trasmissione del virus con particolare riferimento alla possibile contemporanea infezione in sedi anatomiche multiple. Vengono approfonditi gli aspetti riguardanti la prevenzione e il controllo dell’infezione mediante la somministrazione di vaccini e lo svolgimento di campagne cono…
Sexual and reproductive health risk behaviours among Palermo university students: results from an online survey.
2018
Aim. Evaluation of the knowledge and behavioral risks related to sexually transmitted infections (STIs) among the students at the University of Palermo. Materials and Methods. Cross-sectional study. An anonymous online questionnaire has been submitted to the students of Palermo University. Survey investigates to socio-demographic information, sexual habits and the level of knowledge of the STIs. Results. The sample consists of 539 students; average age 22.65 (± 2.95). The risk to have unprotected occasional sexual intercourse is related to the following circumstances: the homosexual or bisexual status, the male gender, the age of the occurrence of the first sexual intercourse, that is at 17…
PCR testing for Treponema pallidum in paraffin-embedded skin biopsy specimens: test design and impact on the diagnosis of syphilis
2007
Background: Syphilis, a chronic infection caused by Treponema pallidum (T. pallidum), is a disease which is increasing in incidence, and thus more and more becoming a differential diagnosis in routine pathology. Aim: Since histological changes are not specific, we sought to develop a polymerase chain reaction (PCR)-based molecular assay for the detection of T. pallidum in formalin-fixed, paraffin-embedded tissues, and evaluate its diagnostic power, especially in comparison with other ancillary methods, i.e. immunohistochemistry and Dieterle staining. Methods: 36 skin biopsies with the clinical and /or serological diagnosis of syphilis were evaluated by morphology, immunohistochemistry and s…
DNA Amplification Fingerprinting for Subtyping Neisseria gonorrhoeae Strains
1995
Background and Objectives DNA amplification fingerprinting is used in most epidemiologic studies as a substitute for conventional typing methods. DNA amplification fingerprinting and conventional typing methods were compared in this epidemiologic study of Neisseria gonorrhoeae. Goal of This Study To differentiate 70 Neisseria gonorrhoeae isolates from untreated patients with urogenital gonococcal infection. Study Design Gonococcal strains were characterized by auxo-typing, serotyping, plasmid profile, antibiotic sensitivity, and DNA amplification fingerprinting. The method of unweighted pair-group average linkage was used for cluster analysis. Discriminatory power was calculated applying Si…
Sexually Transmitted Diseases: Diagnosis and Control
2022
Sexually transmitted diseases (STDs)—or sexually transmitted infections (STIs)—are generally acquired through sexual contact [...]
Motion and force analysis of slow-speed multi-trailer systems
2018
Comparing with the tractor-trailer systems for the road haulage, which must cope with some typical undesired trends, such as high-speed instability, over- or under-steering and off-tracking, the multi-trailer systems for the transport of luggage in the airports or in the railway stations, or for the transfer of goods in the warehouses, run at quite low speeds, but must manage to steer clear of the many obstacles encountered along their path. This type of vehicle is not subject to tire cornering phenomena, because the speed is just low and the wheels are generally stiff. Hence, the vehicle movement is in practice ruled by the non-holonomic rolling constraint of the wheels and by the steerin…
15-25 gadīgo zināšanas par cilvēka papilomas vīrusu
2022
Vispārīga informācija:Cilvēka papilomas vīruss (HPV) ir viens no visizplatītākā seksuāli transmisīvā slimība visā pasaulē. Infekcijas sekas var būt maksts, vulvas, dzemdes kakla, dzimumlocekļa, anālā rajona, mutes dobuma un rīkles vēzis, kā arī kārpas dzimumorgānu rajonā. Infekciju veicinošie faktori ir dzimumakts bez prezervatīva, liels dzimumpartneru skaits, agrīns pirmais dzimumakts un smēķēšana. Vissvarīgākais primārais profilakses pasākums ir vakcinācija pret HPV. Mērķis:Darba objektīvais mērķis ir novērtēt 15-25 gadi vecu cilvēku zināšanas un izpratni par HPV un atrast ietekmējošos faktorus, lai nākotnē radītu mērķtiecīgāku izskaidrošanu. Materiāli un metodes:200 dalībnieki aizpildīja…
“This Racial Menace”?: Public Health, Venereal Disease and Maori in New Zealand, 1930–1947
2007
In 1939, Whakatane, on the remote east coast of the North Island of New Zealand, came to the attention of the New Zealand Department of Health as an area where syphilis was “suspected [to be] widespread”.1 This isolated part of the country was largely inhabited by Maori communities, and the revelation that venereal disease (VD) was so prevalent caught the Department by surprise, especially as a nationwide public health campaign against venereal disease had been in progress since 1917.2 In response, a comprehensive venereal disease campaign targeting Maori alone was developed––the earliest example of such a focus by the Department. This reaction highlighted what Dr Thomas Ritchie, Director o…
Potential impact of a nonavalent anti HPV vaccine in Italian men with and without clinical manifestations
2021
AbstractHuman papilloma virus infection (HPV) is the most common sexually transmitted disease. Little is known about male infection. Nonavalent vaccine against types 6/11/16/18/31/33/45/52/58 was approved and neutral gender immunization programs have been proposed. This study evaluates the potential impact of nonavalent vaccine compared to quadrivalent in male living in Sicily (Italy). 58.7% of samples were HPV positive and forty-four types of HPV were identified. A significant higher estimated coverage of nonavalent vaccine than quadrivalent was observed (64.3% vs. 45.8%), with absolute and relative additional impact of 20.1% and 47.2%, respectively. Low impact of the vaccine were calculat…