関連する実験動画
Updated: Aug 12, 2026

10:03
Inducing Meningococcal Meningitis Serogroup C in Mice via Intracisternal Delivery
Published on: November 5, 2019
まとめ
ボルトン (Bolton) の髄膜球菌感染症の流行 (1970年−1974年) は,主に幼い子供に影響を与え,14人の死亡を引き起こした. 流行性菌株は,治療前の接触者において高い鼻の運搬率を示した.
科学分野:
- エピデミオロジー エピデミオロジー
- 感染症 感染症は感染症です.
- 公衆衛生は公衆衛生である.
背景:
- 1970年から1974年の間にボルトンで髄膜炎球菌感染症の発生が発生しました.
- 発症の原因は,スルフォナミドに敏感なNeisseria meningitidisのB群株でした.
研究 の 目的:
- ボルトン髄膜炎球菌感染症の発生の流行病学を説明するために.
- 疫病発生の危険因子と特徴を特定し,特に小児における危険因子を特定する.
主な方法:
- 1970年12月から1974年6月までの症例データの遡及分析.
- 年齢グループによる発作率の計算.
- 近い家族との接触における鼻の運搬の調査.
主要な成果:
- 研究期間中に82件の症例と14件の死亡が記録されました.
- 小児では高い発作率が見られ,そのピークは6~11ヶ月の年齢層で10万人に184人であった.
- すべての死亡者は3歳未満の子供でした.
- 34%の親密な家族接触者は,スルフォナミド予防接種を受ける前に流行病株を携えていた.
結論:
- 疫病の発生は,幼い子供たちに不釣り合いな影響を及ぼし,彼らの脆弱性を強調しました.
- 鼻の早期発見と管理は,アウトブレイクを制御する上で極めて重要です.
- 菌株のスルフォナミドに対する感受性は,潜在的な治療の選択肢を示唆しますが,輸送は依然として懸念事項です.
関連する概念動画
Rocky Mountain Spotted Fever
Rocky Mountain Spotted Fever (RMSF) is a severe tick-borne illness caused by Rickettsia rickettsii, a Gram-negative, coccobacillary bacterium. This pathogen is an obligate intracellular parasite, requiring a host cell for replication. Transmission occurs through the bite of an infected tick. In the United States, the most important vectors are Dermacentor variabilis (American dog tick) and Dermacentor andersoni (Rocky Mountain wood tick), though other tick species may also serve as vectors.
Bacterial Meningitis
Bacterial meningitis is a severe infectious disease involving inflammation of the meninges, the protective membranes surrounding the brain and spinal cord. It occurs when pathogenic bacteria cross the blood–brain barrier and enter the cerebrospinal fluid. Common causative organisms include Neisseria meningitidis, Streptococcus pneumoniae, Haemophilus influenzae type b, Listeria monocytogenes, and Escherichia coli K1. The exact route of entry varies by pathogen and host condition.Routes of Entry...
Viral Meningitis
Viral meningitis is the most common form of meningitis and is often referred to as aseptic meningitis to indicate the absence of bacterial involvement. It is generally milder than bacterial meningitis, with symptoms including fever, headache, stiff neck, drowsiness, nausea, photophobia, and vomiting. Rarely, more severe manifestations or death may occur. Common causative agents include enteroviruses, particularly coxsackie A and B viruses and echoviruses, all members of the Enterovirus genus...
Cryptococcal Meningitis
Cryptococcal meningitis is a life-threatening opportunistic infection predominantly associated with HIV/AIDS, accounting for over 100,000 deaths annually worldwide. However, it also affects individuals with other forms of immunosuppression, including those undergoing immunosuppressive therapy, organ transplant recipients, patients with innate immunodeficiencies, and individuals with hematological disorders. The infection is caused mainly by Cryptococcus neoformans and Cryptococcus gattii,...
Bacterial Meningitis I: Introduction
Bacterial meningitis is a severe, life-threatening inflammation of the meninges, particularly the pia mater and arachnoid mater, affecting the subarachnoid space, ventricles, and cerebrospinal fluid (CSF). If untreated, it can lead to significant neurological complications or death.Causative AgentsCommon pathogens vary with age and immune status. In adults, major organisms include Streptococcus pneumoniae, Neisseria meningitidis, and Haemophilus influenzae. Streptococcus agalactiae (group B...
Bacterial Meningitis II: Pathophysiology
Bacterial meningitis typically begins when pathogens such as Neisseria meningitidis and Streptococcus pneumoniae colonize the nasopharynx and invade the bloodstream. This process is facilitated by bacterial virulence factors, such as polysaccharide capsules, which resist phagocytosis and complement-mediated killing. Less commonly, bacteria reach the central nervous system via contiguous spread from infections like otitis media or sinusitis, through congenital or acquired dural defects, or...

