Results 11 to 20 of about 22,008 (204)

Successive influenza virus infection and Streptococcus pneumoniae stimulation alter human dendritic cell function

open access: yesBMC Infectious Diseases, 2011
Background Influenza virus is a major cause of respiratory disease worldwide and Streptococcus pneumoniae infection associated with influenza often leads to severe complications.
Tu Wenwei   +6 more
doaj   +1 more source

PROPERTIES OF NATIVE PROTEIN-CONTAINING ANTIGENS OF STREPTOCOCCUS PNEUMONIAE

open access: yesЖурнал микробиологии, эпидемиологии и иммунобиологии, 2019
Aim. The study of immunochemical and immunobiological properties of native protein-containing antigens of pneumococcus. Materials and methods. The study was carried out on the strains of the Collective Usage Center «Collection of Mechnikov Res. Inst. for
D. S. Vorobyev   +5 more
doaj   +1 more source

PNEUMOCOCCUS HEMOTOXIN [PDF]

open access: yesJournal of Experimental Medicine, 1914
Solutions of the bodies of pneumococci, obtained by dissolving them in dilute solutions of sodium cholate, by permitting them to undergo autolysis, or by first freezing, drying, and then grinding in salt solution, are actively hemolytic for rabbit, sheep, guinea pig, and human red blood corpuscles. The substance on which this hemolytic property depends
openaire   +2 more sources

Multidimensional Frailty and Vaccinations in Older People: A Cross-Sectional Study

open access: yesVaccines, 2022
It is known that influenza, herpes zoster, pneumococcal and pertussis infections may increase morbidity and mortality in older people. Vaccinations against these pathogens are effective in older adults.
Nicola Veronese   +13 more
doaj   +1 more source

Phosphatidylcholine (lecithin) stimulating effect on pathogenic properties of pneumococcus

open access: yesУчёные записки Санкт-Петербургского государственного медицинского университета им. Акад. И.П. Павлова, 2014
The authors have studied the effect of phosphatidylcholine (lecithin) - a derivative of choline - on the biological properties of streptococus pneumonia.
A. S. Kvetnaya, L. I. Zhelezova
doaj   +1 more source

Systematic review and meta-analysis on the etiology of bacterial pneumonia in children in sub-Saharan Africa

open access: yesJournal of Public Health in Africa, 2022
Introduction. Before the introduction of vaccination to protect children from pneumonia, Streptococcus pneumoniae and Haemophilus influenzae type B (HiB) were the most frequent aetiological agents causing bacterial pneumonia in children under five years ...
Chukwuemeka Onwuchekwa   +6 more
doaj   +1 more source

Pneumococcus nasopharyngeal carriage in children attending an academic hospital in Pretoria, South Africa, after the introduction of pneumococcal vaccine

open access: yesSouthern African Journal of Infectious Diseases, 2019
Background: In 2009, pneumococcal conjugate vaccine was introduced in South Africa. However, there are concerns that this could lead to an increase in colonisation of non-vaccine serotypes (serotype replacement). Methods: In a cross-sectional study, 350
Charity Newton   +3 more
doaj   +1 more source

PM2.5 impairs macrophage functions to exacerbate pneumococcus-induced pulmonary pathogenesis

open access: yesParticle and Fibre Toxicology, 2020
Background Pneumococcus is one of the most common human airway pathogens that causes life-threatening infections. Ambient fine particulate matter (PM) with aerodynamic diameter ≤ 2.5 μm (PM2.5) is known to significantly contribute to respiratory diseases.
Yu-Wen Chen   +11 more
doaj   +1 more source

Pneumococcal Polysaccharide Conjugated Vaccines and the Problem of Changing Circulating Serotypes of Pneumococcus

open access: yesЭпидемиология и вакцинопрофилактика, 2023
Relevance. In 2007, WHO recommended pneumococcal conjugate vaccines (PCV) be included in national immunization schedules for young children. By 2020, 145 countries, including Russia, were using PCV. Aims.
N. N. Kostyukova, V. A. Bekhalo
doaj   +1 more source

Deoxyribonucleases of Pneumococcus

open access: yesJournal of Biological Chemistry, 1967
Abstract Two enzymes with deoxyribonuclease activity were isolated from Pneumococcus. One of these, an endonuclease active on both native and denatured deoxyribonucleic acid, produced 5'-phosphate-terminated fragments which, even after extensive degradation, were larger than mononucleotides.
S, Lacks, B, Greenberg
openaire   +2 more sources

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