viral rashes in adults Flashcards
(19 cards)
chicken pox is caused by…
primary varicella zoster virus infection
chicken pox rash starts as?
macules + papules
what do macules and papules become, in chicken pox
form into tiny clear fluid filled blisters (vesicles) which burst and crust over
severe complication of chickenpox
varicella infection affecting lungs
= pneumonitis
shingles is caused by
reactivation of latent varicella zoster virus
following primary infection where does VZV go?
lies dormant in sensory nerves or dorsal root ganglia
what does VZV IgG positive in pregnancy indicate?
marker of immunity indicating previous exposure
what does VZV IgG negative in pregnancy indicate?
mother is at risk of becoming infected + should be given VZV immunoglobulins to provide passive immunity
marker of acute or recent infection for VZV
IgM
Presentation of measles
- fever
- malaise
- conjunctivitis
- cough
characteristics of rash in measles
early on blue grey spots (koplik spots) inside of buccal mucosa –> morbilliform/maculopapular rash starts on face and moves down body
3 complications of measles
- bacterial pneumonia
- otitis media
- acute encephalitis
triad of glandular fever
- lymphadenopathy
- sore throat
- fever
drugs used for malaria prophylaxis
- chloroquine
- doxycycline
- mefloquine
symptoms of malaria…
- headache
- rigors + fever
- dry cough
- splenomegaly
- N +V
- back pain
- fatigue + muscular pain
3 parasites acquired in the UK
- helminths
- protozoa
- ectoparasites
route of transmission of helminths
adult worm lives in childs gut –> at night leave anus + lay eggs on perineum –> child scratches itchy bottom transmitting eggs to mouth –> eggs are then ingested + larvae hatch in host
treatment of helminths
mebendazole
most well known infection in malawi
and their intermediate host is?
schistosomiasis
snails
