Complement deficient patients are susceptible to rare meningococcal serogroups. A 6-year-old girl presented with serogroup Z meningitis. This led to identification of a C8 deficiency. The MenB-4C vaccine induced cross-reactive antibodies to serogroup Z and increased in vitro opsonophagocytic killing and may thus protect complement deficient patients.
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http://dx.doi.org/10.1097/INF.0000000000003259 | DOI Listing |
Vaccines (Basel)
November 2024
Laboratory of Proteolytic Enzyme Chemistry, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia.
IgA1 protease is one of the virulence factors of , and other pathogens causing bacterial meningitis. The aim of this research is to create recombinant proteins based on fragments of the mature IgA1 protease A-P from serogroup B strain H44/76. These proteins are potential components of an antimeningococcal vaccine for protection against infections caused by pathogenic strains of and other bacteria producing serine-type IgA1 proteases.
View Article and Find Full Text PDFActa Med Port
January 2025
Serviço de Pediatra e Neonatologia. Unidade Local de Saúde da Póvoa de Varzim. Vila do Conde. Póvoa de Varzim. Portugal.
Haemophilus influenzae serotype A is a rare cause of meningitis and invasive disease in pediatric patients. A six-month-old infant presented to the emergency room with fever, cough and nasal drip. On admission, the infant was alert and hemodynamically stable but progressively became more lethargic with bulging of the fontanelle.
View Article and Find Full Text PDFPLoS One
January 2025
School of Mathematics, Manchester University, Manchester, United Kingdom.
The genus Neisseria includes two major human pathogens: N. meningitidis causing bacterial meningitis/septicemia and N. gonorrhoeae causing gonorrhoea.
View Article and Find Full Text PDFFront Public Health
December 2024
Department of Laboratory Medicine, West China Second University Hospital, Sichuan University, Chengdu, China.
Background: is a transmitted respiratory pathogen that causes high morbidity and mortality in children, especially those under 5 years of age. During the implementation of population control measures for COVID-19 in mainland China, the detection rate in pediatric patients decreased. However, with the second wave of the COVID-19 pandemic (2022), the incidence of pneumococcal disease (PD) and even invasive pneumococcal disease (IPD) began to rise again.
View Article and Find Full Text PDFNeisseria meningitidis is a common commensal bacterium of the nasopharynx that can cause invasive meningococcal disease (IMD). In comparison, N. gonorrhoeae is always a pathogen usually limited to mucosal sites.
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