I am Dr Shamoon. Your immunity position is actually good. You completed a full primary anti-rabies course (0,3,7,28) in September 2025 and then took a two-dose booster (0,3) in April 2026, so you are a previously fully immunised person with an established memory response. For such a person, a fresh category II/III exposure never needs the full 5-dose schedule again and never needs rabies immunoglobulin - only two booster doses, on day 0 and day 3, which reliably push antibody levels up within a few days. Since your last booster was in April 2026 (about 4 months before this cat scratch of 17 August), the two-dose re-exposure booster is what is indicated for this scratch, unless the scratch was truly superficial with no break in the skin and no oozing/bleeding, in which case only wound care is needed. The practical concern in your case is timing: the exposure was around two weeks ago, so the boosters should be taken now without further delay - late is far better than never, and in a primed person the response is rapid. Regarding your main question on duration of protection: there is no fixed expiry date. After a complete course plus a booster, protective memory lasts for many years, generally accepted as 10 years or more, and for most people no routine booster is needed at all. What matters is that with every new bite or scratch from a dog, cat or other suspect animal, you take the day 0 and day 3 booster afresh, irrespective of how recently you were vaccinated - the only exception being a re-exposure within about 3 months of a completed course, where many guidelines allow omitting the vaccine. Repeated routine boosters "just for cover" are not required and give no extra benefit.

Already 3 months,  you need better one full course.

If you would like to discuss your concern in more detail, please feel free to contact me on WhatsApp at nine one one nine two five five six nine nine. Alternatively, you can connect with me through the Practo app for a detailed consultation

Yes I understand your querry regarding the booster dose and re-vaccination of rabies vaccine... Under standard World health organisation (WHO) guidelines if a scratch or bite from a cat happens more than three months (90 days) after completing a full rabies vaccine or booster dose.Two booster dose of rabies vaccine recommended on day -0 and day -3... Hope I address the your querry and concern Regarding Rabies re- vaccination

If the scratch did not break the skin at all, it is Category I and rabies PEP is not required; if there is any abrasion/bleeding, it should be assessed as an exposure. Therefore, 2 booster doses (Day 0 and Day 3) are appropriate if the scratch is a Category II/III exposure. According to the Indian NCDC rabies guidelines, if a person with documented previous complete PEP/PrEP is re-exposed more than 3 months after the last complete regimen, they should receive 2 booster doses on Day 0 and Day 3. RIG is not required. Here, the complete PEP was in September 2025, so the August 2026 exposure is well beyond 3 months.

Requires a proper assessment to understand the underlying cause and guide you. Please book a consultation for a detailed evaluation, personalized treatment plan and further advice.

You can take booster again.

3 months after vaccination. So you need rebooter doses.go for bosster dose.

kindly do connect and consult with me for better treatment plan and advice on your case via PRACTO app

If you would like to discuss your concern in more detail, please feel free to contact me on WhatsApp at eight six one nine six six nine nine zero six. Alternatively, you can connect with me through the Practo app for a detailed consultation

Need a few more details please consult for further evaluation and treatment

Need few more details for further evaluation. Please consult

Avoid fried and spicy food Water intake more Green leafy vegetables more Fiber meal Do connect and consult Will help you

Can help you, kindly consult and provide detailed history for proper diagnosis and further management