Measles

Under investigation - A case that has been notified, but information is not yet available to classify it as probable or confirmed.

Probable - A clinically compatible illness where there is a high index of suspicion of disease, and either laboratory suggestive evidence or laboratory confirmatory testing is inconclusive or cannot be performed.

• A high index of suspicion is if someone has a clinically compatible illness, is susceptible to measles (not immune/immunised) and has been in an area with known measles cases (either in Aotearoa New Zealand or overseas) during the incubation period OR when there is an epidemiological link to a probable case.

Confirmed - A clinically compatible illness that is laboratory confirmed or epidemiologically linked to a confirmed case. Not a case: A case that has been investigated and subsequently found not to meet the case definition.

Mumps and Rubella

Under investigation - A case that has been notified but information is not yet available to classify it as probable or confirmed.

Probable - A clinically compatible illness.

Confirmed - A clinically compatible illness that is laboratory confirmed or epidemiologically linked to a confirmed case.

Not a case - A case that has been investigated and subsequently found not to meet the case definition.

For more information refer to the Measles, Mumps, or Rubella section of the Communicable Disease Control Manual.