Ebola
Ebola virus disease (EVD), formerly known as Ebola haemorrhagic fever
natural hosts - thought to be fruit bats.
rare but severe, often fatal.
Average case fatality rate is around 50%. Has varied from 25% to 90% in past outbreaks.
spreads through human-to-human transmission via direct contact (through broken skin or mucous membranes) with:
Blood or body fluids from living or dead
Objects that have been contaminated with body fluids
ceremonial burials also a source
incubation period: 2-21/7.
not contagious unless symptomatic.
Clinical
Symptoms can be sudden and include:
Fever, Fatigue, Muscle pain
Headache, Sore throat
Vomiting, Diarrhoea
Rash
Symptoms of impaired kidney and liver function
internal and external bleeding
Ix: low WCC & platelet counts and elevated LFTs.
Specific labs:
antibody-capture enzyme-linked immunosorbent assay (ELISA)
antigen-capture detection tests
serum neutralization test
reverse transcriptase polymerase chain reaction (RT-PCR) assay
electron microscopy
virus isolation by cell culture.
Treatment
supportive primarily - trials with blood products, immunotherapies, antivirals
monoclonal antibodies (Inmazeb and Ebanga) have been approved
Ervebo vaccine is effective
References include:
WHO Ebola