Travel related illness Flashcards
(35 cards)
what puts travellers vulnerable to infection?
temptation to take risks from home
stress of travel
different epidemiological of some diseases
incomplete understanding of health hazards
refugees i.e. deprivation, malnutrition, disease, injury
give examples of climate or environment related health problems?
sunburn heat exhaustion and heat stroke fungal infections bacterial skin infections cold injury altitude sickness
what is the vector for malaria?
female anopheles mosquito
what is parasite causes malaria?
plasmodium falciparum
how is malaria diagnosed?
thick and thin blood films
rapid antigen tests
quantitive buffy coat
what is the presentation of malaria?
non speific fever rigors aching bones abdominal apin dysuria , frequency headache sore throat cough
what are the severe consequences of malaria?
cerebral encephalopathy black water fever jaundice pulmonary oedema severe anaemia algid malaria (gram negative septicaemia)
what parasitic count is indicative of severe malaria?
parasitic count > 2%
what is the treatment for severe malaria?
IV artesunate
what is the treatment for non-severe malaria?
Riamet
if not available then quinine + doxycycline or clindamycin
what organism(s) is responsible for typhoid fever?
salmonella typhi
salmonella paratyphi
how is typhoid fever contracted?
poor sanitation
unclean drinking water
how is typhoid fever diagnosed?
culture blood, urine and stool
culture bone marrow
what is the treatment for complicated and uncomplicated typhoid fever?
oral azithromycin (uncomplicated) IV ceftriaxone (complicated)
how is dengue fever transmitted?
airborne
what is responsible for the transmission of dengue fever?
aedes aegypti mosquito
what is the presentation of dengue fever?
abrupt onset fever headache, retro-orbital pain myalgia/arthralgia maculopapular rash haemorrhage signs i.e. purport, petechiae, positive tourniquet test
how is schistosomiasis transmitted?
fresh water;
fresh water snails and are released into the water as cercariae which then penetrate into humans who enter the water
what is the presentation of schistosomiasis?
swimmers itch in first few hours
inasvive stage: cough, abdo disomfort, splenomegaly, eosinophilia
katayama fever: prostrate, fever, urticaria, lymphadenopathy, splenomegaly, diarrhoea
acute disease: eggs deposited in bowel = dysentry or bladder = haematuria
chronic disease
how is schistosomiasis diagnosed?
clinical
antibody tests
ova in stool and urine
rectal snip
what is responsible for the transmission of rickettsiosis?
tick typhus
what is the presentation of ricketsiossis?
swinging fever headache confusion endovasculitis rash bleeding
what is the treatment for ricketssiosis?
tetracycline
what is tick typhus responsible for transmitting?
ricketssiosis