Tetanus Flashcards
Tetanus
Clostridium tetanus toxin
Type of organism / pathogen
Bacteria
Distribution
Africa
Asia
Reasons for distribution
Poverty & pollution of water systems
3rd world countries
Developing countries
Symptoms
Muscle riding Lockjaw Painful spasms Neck stiffness Nerve failure Heart attack
Diagnosis
Physical exam
Immunisation history
Signs and symptoms
Treatment
Neutralisation of unbound toxin with anti toxin injections
Anti convulsive drugs
Preventions
Immunisation every 10 years
Economic importance
Vaccination cost billions for society and health care system
Ecology
Spores get into wounds and germinate anaerobic conditions and multiple.
Neurotoxins are produced and spread in the blood and binds to the end of motor neurons
Toxins track along motor neuron to nerve cell bodies in the spinal cord.
Toxins bind to the presynaptic nerve endings which stops the release of inhibitory neurotransmitters and stops muscle responses to sensory stimulation
Transmission
Enters via skin injuries on fomites
Can be zoonotic
Spores spread in soil via animal faeces
Spores get into wounds from trauma, puncture, tattoo, surgery or injections