no, you need not take vaccine again. the previous shots will work as pre-exposure prophylaxis in your case, till 6 months at least. and suppose a similar thing happened after 6 months post vaccination, you have to check your virus neutralizing antibody levels against rabies virus ,to be 100-% sure, you can opt for rapid fluorescent focus inhibition test(RFFIT). if you have more queries ,you can directly ask me.