Clinic - Infectious Diseases Flashcards
What is the significance of an infection in the first 3 months?
Usually bacterial so need septic screen and IV antibiotics immediately.
Uncommon for viral because of immunity from mother
What are some risk factors for childhood infectious diseases?
Other family members ill
Not immunised
Recent travel
Animal contact
Immunocompromised
Rash - Meningococcal
What is a focus for infection and what are some signs?
An indication of where the infection is
eg
- Stridor
- Diarrhoea
- Rash
- Cough.
- If not ?UTI
See meningitis week
0 - 3 months - E.Coli, Group B Strep, Listeria
1m - 6y - N.meningitidis, S, pneumonae, H.Influenza
6 - 18 - N.meningitidis, S, Pneumonae
Elderly - S,pneumona, Listeria, N,meningitidis
What can cause encephalitis?
HSV
Post chicken pox (varicella zoster) or mumps
What is toxic shock syndrome?
S.aureus super antigen. It can come from an infection at any site
- It causes:
- Fever
- Hypotension
- Diffuse, erythematous, macular rash - LIKE SUNBURN
Treat with surgical debridement and antibiotics
What causes necrotising fasciitis or cellulitis
N.fasciitis - C.perfrigens
Cellulitis - S.aureus/S.pyogenes
What causes meningococcal meningitis?
Pneumococcal meningits?
N.meningitidis
S.Pneumonae
What causes epiglottis?
Croup?
H.influenzae
Parainfluenza viruses
What does the herpes simplex virus cause?
HSV1 - Lip and skin cold sores
HSV 2 - Genital
Often asymptomatic but can cause gingivostomatitis in kids
NB - Eczema herpaticum/Herpes keratitis
What is this?
Herpetic whitlow
HSV1 transferred to finger
What is this?
Herpes Keratitis
What causes chicken pox?
What is the incubation?
What is characteristic of it?
- Varicella zoster
- Incubation - 10-21 days
- Fever and rash together and rash occurs on trunk then spreads
- New and old VESICLES may occur together
- What causes measles?
- What is the incubation?
- What is characteristic of it?
- Measles virus
- 10-14 days
- Fever occus before the rash, KOPLIKS SPOTS and rash behind the ears
NB. Encephalitis
Subacute sclerosing panencephalitis
- What causes mumps?
- What is the incubation?
- What is characteristic of it?
- Mumps virus
- 7 - 14 days
- Parotiditis and raised amylase
Can lead to orchitis and infertility