Results 81 to 90 of about 41,304,560 (275)

Weighted prevalence and associated risk factors of hepatitis E virus antibodies among pregnant women in rural Burkina Faso using dried blood spot samples

open access: yesHepatology Research, Volume 55, Issue 6, Page 795-806, June 2025.
Abstract Aim To estimate the weighted prevalence of hepatitis E virus (HEV) antibodies and risk factors among pregnant women in Burkina Faso and to evaluate the efficiency of dried blood spots (DBS) in detecting HEV antibodies. Methods We first evaluated the efficiency of DBS detecting HEV antibodies by comparing 62 DBS with matched serum samples using
Chanroth Chhoung   +13 more
wiley   +1 more source

Prevalence of culicine salivary antibodies in non‐human primates living in national parks in Thailand

open access: yesMedical and Veterinary Entomology, Volume 39, Issue 2, Page 278-290, June 2025.
Anti‐mosquito salivary gland antibodies were detected in the sera of macaques (Macaca arctoides, M. leonina and M. fascicularis) from Kaeng Krachan, Khao Yai and Mu Ko Ranong National Parks, respectively. For M. leonina and M. fascicularis, the highest titres were against Ae. aegypti while Ae. albopictus antibody titres were observed in M.
Ariza Minelle A. Aguila   +8 more
wiley   +1 more source

SARS-CoV-2 Seroprevalence in Lithuania: Results of National Population Survey

open access: yesActa Medica Lituanica, 2021
Background. Betacoronavirus SARS-CoV-2 has spread in early 2020 worldwide just in several months. The official statistics are consistently collected, but this is mainly based on symptomatic reports.
Kastytis Šmigelskas   +8 more
doaj   +1 more source

Identification of individuals with gonorrhoea within sexual networks: a population-based study.

open access: yes, 2006
BACKGROUND: Molecular typing of Neisseria gonorrhoeae and contact tracing provide a combined approach for analysis of sexual networks in metropolitan areas, although there are some difficulties in application.
Bishop, Cynthia J   +7 more
core   +1 more source

Socioecology and Prevalence of SARS‐CoV‐2 Infection in Quilombolas Living in the Brazilian Amazon Socioecologia e Prevalência de Infecção pelo SARS‐CoV‐2 em Quilombolas Vivendo na Amazônia Brasileira Socioecología y prevalencia de la infección por SARS‐CoV‐2 en quilombolas que viven en la Amazonía brasileña

open access: yesAmerican Journal of Human Biology, Volume 37, Issue 5, May 2025.
ABSTRACT Objectives This cross‐sectional study presents socioecological, epidemiological aspects, and the seroprevalence of immunoglobulin G (IgG) against severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) in a group of quilombola (afro‐derived) communities in the states of Pará and Tocantins, in the Brazilian Amazon, to evaluate the impact ...
Keise Adrielle Santos Pereira   +19 more
wiley   +1 more source

Epidemiological determinants of spread of causal agent of severe acute respiratory syndrome in Hong Kong.

open access: yes, 2003
BACKGROUND: Health authorities worldwide, especially in the Asia Pacific region, are seeking effective public-health interventions in the continuing epidemic of severe acute respiratory syndrome (SARS).
Abu-Raddad, Laith J   +18 more
core   +1 more source

Seroprevalence and Placental Transfer of Zika and Dengue Virus Antibodies in Postpartum Women in Southeast Brazil

open access: yesJournal of Medical Virology, Volume 97, Issue 5, May 2025.
ABSTRACT Zika (ZIKV) and dengue (DENV) viruses are major public health concerns in Brazil. Understanding population serological status, particularly in pregnant women, is vital for estimating their spread. This study assessed ZIKV and DENV seroprevalence in pregnant women and the transplacental transfer of antibodies to their newborns, crucial for ...
Rafael Rahal Guaragna Machado   +14 more
wiley   +1 more source

Transmission dynamics of the etiological agent of SARS in Hong Kong: impact of public health interventions.

open access: yes, 2003
We present an analysis of the first 10 weeks of the severe acute respiratory syndrome (SARS) epidemic in Hong Kong. The epidemic to date has been characterized by two large clusters-initiated by two separate "super-spread" events (SSEs)-and by ongoing ...
Abu-Raddad, Laith J   +19 more
core   +1 more source

Biological activities and chemical composition of methanolic extracts of selected Autochthonous microalgae strains from the Red Sea [PDF]

open access: yes, 2015
Four lipid-rich microalgal species from the Red Sea belonging to three different genera (Nannochloris, Picochlorum and Desmochloris), previously isolated as novel biodiesel feedstocks, were bioprospected for high-value, bioactive molecules.
Carolina Bruno De Sousa   +14 more
core   +4 more sources

Seroepidemiological study of Helicobacter pylori infection in infancy. [PDF]

open access: yesArchives of Disease in Childhood - Fetal and Neonatal Edition, 1996
The incidence of Helicobacter pylori infection in very young children was determined, based on the emergence of specific IgG antibodies in sequential serum samples from birth to 2 years of age. The risk of acquiring H pylori infection in infancy as a result of maternal exposure to the organism was also assessed, based on the determination of maternal ...
Merja Ashorn   +4 more
openaire   +2 more sources

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