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Invasive Disease Due to Neisseria meningitidis: Surveillance and Trends in Israel Prior to and during the COVID-19 Pandemic.


ABSTRACT: Invasive meningococcal disease (IMD) is a devastating disease with significant mortality and long-term morbidity. The COVID-19 pandemic and containment measures have affected the epidemiology of infectious pathogens. This study's aim was to assess IMD trends in Israel prior to and during the COVID-19 pandemic. The Neisseria meningitidis invasive infection is a notifiable disease in Israel. Laboratory analysis includes serogrouping and molecular characterization. The overall national IMD incidence rate (1998-2022) was 0.8/100,000 population. The IMD incidence rates declined during the pandemic years (0.3/100,000 in 2020-2022 vs. 0.9/100,000 in 1998-2019). The number of notified IMD cases declined by 65% in 2020-2022. The case fatality rate among laboratory-confirmed IMD cases was 9% (47/521, 2007-2022). Mortality risk markers included cases' age (older) and socio-economic status (lower). Overall, most Neisseria meningitidis isolates were of serogroup B (62.6%), and the most prevalent clonal complex (CC) was CC32 (24.2%). Serogroup B prevailed in cases aged 0-9 years (74.5%) and less in cases aged 10 years and above (39%). Neisseria meningitidis serogroups and CC distribution altered recently with a decline in serogroup B fraction, an increase in serogroup Y, and a decline in CC32. Ongoing IMD surveillance is necessary to assess trends in circulating strains and support decision-making on meningococcal vaccination programs.

SUBMITTER: Stein-Zamir C 

PROVIDER: S-EPMC10537818 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature

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Invasive Disease Due to <i>Neisseria meningitidis</i>: Surveillance and Trends in Israel Prior to and during the COVID-19 Pandemic.

Stein-Zamir Chen C   Shoob Hanna H   Abramson Nitza N   Valinsky Lea L   Jaffe Joseph J   Maimoun David D   Amit Sharon S   Davidovich-Cohen Maya M  

Microorganisms 20230831 9


Invasive meningococcal disease (IMD) is a devastating disease with significant mortality and long-term morbidity. The COVID-19 pandemic and containment measures have affected the epidemiology of infectious pathogens. This study's aim was to assess IMD trends in Israel prior to and during the COVID-19 pandemic. The <i>Neisseria meningitidis</i> invasive infection is a notifiable disease in Israel. Laboratory analysis includes serogrouping and molecular characterization. The overall national IMD i  ...[more]

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