meningococcal Flashcards
moa of MD
respiratory
complications of meningitis
limb encores leading to amputation
subdural effusion (common in infants)
complications of MD
DEAFNESS
delayed development
hydrocephalus
main target populated of MD
infants, children, and young adults. BUT HIGHETS INCIDENCE IN children under 5, and epscially infants as the passive maternal antibodies decrease
virulence factors
- IG protease which neutralises the iG A secretions and allows it to adhere and colonise
- polysaccaride capsule
- endotoxin
serotypes of meningitides
13 serogroups but A B C Y W135 account for the majority of infections
rf for meningitis
aspelina, immunodeficiency , complement (properderin deficiency )
IP MD
3-5 DAYS
PRESNETATION OF MD
In infants under 1 year of age, the presentation may be atypical with slow onset, low-grade fever, poor feeding, somnolence, “fussy” behavior, or irritability. Later, vomiting, lethargy, and seizures ensue.
measures
quick notification to RH inspectorate
should be taken to infectious diseases clinic and treated and only released after 2 negative nasalpharyx swabs
people who have recovered should be followed 1-3 years after
contacts
monitored for 7 days
checked by swab if carrier then treat with erythran for 3-4 days and after another swab t confirm
description of the rash
The bacteria are usually found in soil, dust, and manure and enter the body through breaks in the skin — usually cuts or puncture wounds caused by contaminated objects.
vaccine
polyvalent vaccine contains serotypes A, C Y 135 (not one for b )
polysaccharide vaccine
IM
teenagers off to uni are advised to get the vaccine
lecture says take 1-2 weeks before going endemic area
epidemioligy of meningicoccal disease
Meningococcal disease occurs worldwide, with the highest incidence of disease found in the ‘meningitis belt’ of sub-Saharan Africa. In this region, major epidemics occur every 5 to 12 years.
In the meningitis belt, serogroup A historically accounted for 9 in 10 meningococcal disease cases and the majority of large-scale epidemics. Starting in 2010, meningitis belt countries began implementing mass vaccination campaigns for a monovalent serogroup A meningococcal conjugate vaccine (MenAfriVac®).
In temperate regions the number of cases increases in winter and spring.
tx
antibitoics
mannitol
dexathamesone