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Query in rabies antibody titre
Hello doctor,
Please find my attached report.
I have one doubt i checked my rabies antibody test which came 3.7 EU and test is done on 25th nov 2025. Test is done after 0,3,7 doses. The 3rd dose is taken in 10th nov. Today taken the last dose. Test is done after 15 days after 3rd dose.
My vaccination history below;
Complete ID course July 2025
Two times Booster ID on September and October 2025
New exposure in nov took ID with ERIG started from 3rd nov 2025 end with 1st dec 2025.
My question is, if this titer value drop below .5 after few days lets say 5 days. How much risk from last exposure? I mean the rabbies virus will reactive if titre drop after few days ?
Also does this titre value come from Erig or from arv only? Am i safe sir ? Need booster ?
The value showing in EU .. is it right ?
The test is sone early or in right time ?
Answers (23)
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Antibody the antibody titre is become normal or reached normal with time and you complete your schedule of vaccine.
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complete your vaccine fully.
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Hello,
I think the titre will fall over the time, but once you complete your schedule you’re fully vaccinated. Nothing to worry about.
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Need few more details
Kindly consult
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The antibody levels are already adequate. So simply finish the course of the vaccines as you have. No further tests are indicated.
All the best.
J G S R (online) clinic
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Can help you with the next course of action and treatment plan. Kindly consult via whatsapp at nine zero two nine six zero zero four seven zero.
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You do not need a booster dose after completing the course. You are safe.
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Your antibody report shows a value of 3.7 EU/ml, which is well above the protective threshold of 0.5 EU/ml. This means your body has already developed strong immunity from the vaccination course, and you are fully protected from the exposure in November.
It is completely normal for antibody levels to rise and fall over time. Even if the number drops below 0.5 in a few days or weeks, it does not increase the risk from your past exposure, because the virus cannot “reactivate” once proper PEP (ERIG + full ARV schedule) has been completed. After the wound is infiltrated with ERIG and you receive the vaccine series at the correct times, rabies virus is neutralised at the entry site and cannot progress later, regardless of future antibody fluctuations.
Your antibody value comes mainly from the vaccines, not from ERIG. ERIG only works for 7–10 days locally at the wound and does not create measurable antibodies in blood. The report showing results in EU/ml is correct; that is the standard unit for this test.
The test timing is also appropriate, since measuring titers after dose 3 (around day 14) is commonly done to confirm response. You have demonstrated a strong response, so there is no need for an additional booster.
You are fully protected from the recent exposure, and there is absolutely very minimal rabies risk as of now.
Health Tips
If you want long-term reassurance, you can check titers again after 6–12 months, but this is optional, not mandatory.
Good luck!
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You are safe, test has been done at right time.
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If you want to discuss your problem in more detail, feel free to message me on WhatsApp at nine one one nine two five five six nine nine for a free detailed discussion
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You can consult me directly on Practo, or reach out via WhatsApp:
Eight Seven Six Two Seven Four Nine Nine Seven Four
I’ll guide you step-by-step with easy-to-follow treatment plans.
Early consultation helps avoid complications — feel free to connect.
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0.15 is normal
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Don’t worry
It is still fine
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Consult on practo
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Need few more details for proper understanding of your issue.
You can consult with me online on Practo or whatsapp on eight three one eight four six nine eight eight six for proper diagnosis, conclusion and management
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Kindly consult with proper exposure and detailed history.
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Dr. Shaikh Huzaif
General Physician
18 yrs exp
Aurangabad
Please consult
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Dr. Sajid Ali
General Practitioner
4 yrs exp
Kanpur
No need of booster dose
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Dr. Vetsa Sri Krishna Chaitanya
General Physician
6 yrs exp
Rajahmundry
Need a few more details please consult for further evaluation
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Dr. Gaurav Jaiswal
General Physician
6 yrs exp
Jhansi
Avoid fried and spicy food
Water intake more
Green leafy vegetables
Fiber meal
Do connect and consult
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Dr. Ravi Kumar Nadella
General Physician
18 yrs exp
Hyderabad
Right time
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Dr. Vivek E Wankhede
General Physician
16 yrs exp
Delhi
Hi, I can completely understand your worry, especially when it comes to dangerous conditions like rabies. I'll keep it short and sweet.
Your rabies antibody level of 3.7 is very good. You only need 0.5 to be protected, and your level is much higher than that. This level comes from the vaccine you took and not from ERIG.
Your antibody level will not drop suddenly in a few days — it stays strong for many months. Even if it slowly reduces later, it does NOT cause rabies to come back. Once you take full treatment (ERIG + all vaccine doses), the virus is completely stopped and cannot reactivate.
Next Steps
Even after this, you feel your concerns are not satisfied, consulting is the best option.
take care.
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Dr. Laxmi Koppishetty
General Practitioner
8 yrs exp
Rajahmundry
Kindly consult
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Dr. Anuj Mothsra
General Physician
6 yrs exp
Jhunjhunu
Can help you, kindly consult and provide detailed history for proper diagnosis and further management
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