[Epidemic of rubella encephalitis]
N Ben Achour1, H Benrhouma, A Rouissi
1UR06/11, service de neurologie de l'enfant et de l'adolescent, institut national Mongi Ben Hmida de neurologie, 1007 Tunis, Tunisie.
Summary
Rubella encephalitis is a rare but serious complication in unvaccinated children. This study observed 9 cases during an epidemic, all recovering fully but highlighting the need for widespread vaccination.
Area of Science:
- Neurology
- Virology
- Pediatrics
Context:
- Rubella is typically a mild childhood illness.
- Rubella encephalitis is an extremely rare complication, particularly in unvaccinated children aged 5-14 years.
- An epidemic of rubella in Tunisia led to the observation of 9 cases of rubella encephalitis.
Purpose:
- To describe the clinical presentation, diagnosis, and outcomes of rubella encephalitis cases during a 2011 epidemic in Tunisia.
- To emphasize the potential severity of rubella and the importance of vaccination.
Summary:
- Nine previously healthy, unvaccinated children (8 boys, 1 girl) aged 5-14 years were diagnosed with rubella encephalitis during a rubella epidemic.
- Neurological symptoms, including seizures and altered consciousness, appeared 1-5 days after typical rubella symptoms. All patients had positive IgM antibodies for rubella virus.
- All patients achieved full recovery, though 4 required intensive care. Brain MRI scans were normal, and EEGs showed slow wave activity.
Impact:
- These cases underscore the severe neurological potential of rubella, even if rare.
- The findings highlight the critical role of widespread childhood rubella vaccination in preventing such complications.
- The study contributed to a revision of vaccination strategies in Tunisia, expanding beyond adolescent females to include broader childhood immunization.
Related Concept Videos
01:19Encephalitis l: Introduction
Encephalitis is inflammation of the brain parenchyma, most often due to infections or autoimmune processes. It presents with neuropsychiatric features such as fever, altered mental status, behavioral changes, cognitive dysfunction, seizures, focal deficits, and sometimes autonomic instability. In some cases, the meninges are also involved, resulting in meningoencephalitis.Infectious CausesInfectious encephalitis is most commonly viral but can also result from bacterial, fungal, or parasitic...
01:25Arboviral Encephalitis
Arboviral encephalitis refers to brain inflammation caused by arthropod-borne viruses, particularly those transmitted through mosquito vectors. Among these, West Nile virus (WNV), a member of the Flaviviridae family, is a significant public health concern. WNV is an enveloped, positive-sense, single-stranded RNA virus. Human infection typically begins when an infected mosquito introduces the virus into the dermis during feeding. The primary transmission cycle involves birds as amplifying hosts...
01:26Encephalitis ll: Pathophysiology
Encephalitis is inflammation of the brain parenchyma caused by direct viral invasion or immune-mediated mechanisms triggered by infections or tumors. Both processes lead to neuronal injury, disrupted neurotransmission, and diverse neurological symptoms, often with overlapping clinical and pathological features.Autoimmune EncephalitisIn autoimmune encephalitis, antibodies target neuronal antigens on cell surfaces, synapses, or within neurons. A key example is anti-NMDAR encephalitis, which can...
01:18Viral 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...
01:51Vaccinations
Overview
01:22Bacterial 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...