Did you take time off for the Australian or Japanese flu?

Had a really bad time before xmas and took around 5 weeks or so to fully go and to feel back to normal again, I had the flu jab too so not sure if it had worked or not. Had I not had the jab would I have been worse or did it simply not work? Unusual for me to take any time off work but I had 5 days off and felt rough for a good 5 weeks.