Measles guidelines Flashcards
Rate of SSPE
0.01%
Complications of measles
Types of vaccine failure for Measles
1) primary failure occurs when an individual fails to
make an initial immunological response to the vaccine. 2) Secondary failure occurs when an
individual responds initially but then protection wanes over time.
Breakthrough measles in someone who developed immunity to
measles, either from natural measles or from prior receipt of measles containing vaccine,
typically between 6 and 30 years after infection or immunisation
Re Measles Describe rash illness following vaccination (timing) how do you distinguish between them (lab testing)
What happens to measles sequences
As per UKHSA guidelines: A dry swab can be used for measles testing T/F
T
Define Breakthrough measles- how is it confirmed
incubation of measles
21 days
infectious 4days before to 4 days after
Describe Group A and B immunodeficiency in measles
A: immunosupressed but liekly to maintain immuninty
(steroids etc)
B unlikely to maintain immunity
i- those on mabs
bii 12 months post HSCT- just give IVIG
Approach to measles exposure in a waiting room
When the information provided cannot clearly define the level of contact but there are known
immunosuppressed individuals involved, these should be managed as close contacts and
rapidly assessed for post-exposure prophylaxis.
Where there is a defined list of contacts, but it is not clear if the group contains
immunosuppressed individuals, an individual risk assessment is not practicable. In this situation,
warn and inform letters or messaging should be issued to all potential contacts.
If there is no identifiable list of contacts at all, then other means of case finding should be
considered, such as writing to local healthcare providers, information leaflets or posters in public
areas and other communication activities as relevant to the setting.
born before 1970, immunosupressed (long term steroids) exposed to measles. What do you do?
Ask if they have had measles before
If not- test IgG- give PEP in 6 days
7 month old exposed to measles at nursery. What do you do
Guidelines are to vaccinate with in 72 hours
HNIG: usually reserved for household contact (but nursery hours may be prologued)
Note over 9 months: vaccine only
Under 6 months: always HNIG
Non immune healthcare worker exposed. How long off work
From day 5 of exposure, until day 21, unless vaccinated, and then from day 14
