During college I faithfully got my flu vaccine every year. Shortly after I left college the US had a year with a bad flu vaccine shortage (2004).
When discussing the shortage with my coworkers at the time (who grew up in a different part of the country than I did), they replied that they didn't ever get the flu vaccine because they were told that if they ever had to skip a year (such as the year there were shortages) they would give much sicker than if they had never gotten the flu vaccine.
Is there any scientific truth to this belief?