text: what are the symptoms of german measles? if you have been immunised can you still catch it. i was immunised 25 years ago. thanks in advance for any info the symptoms of german measles can be so slight you miss them entirely.  the light rash can come and be gone in a couple of hours or less. it doesn't cover your body and may be so light as to be unnoticeable. you may have a few slight cold like symptoms.  yes you can get it after immunisation - its supposed to lessen the symptoms if you are immunised.  a doctor can order a blood test - a rubella titre - to check your level of immunisation. in australia its a routine test during pregnancy.  the problem of course is that german measles is known to cause birth defects so if you are pregnant - avoid anyone even suspected of having german measles.  if you think you have got german measles, had it, or been exposed to it, while pregnant - go to the doctor.