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HIV and syphilis
My partner was recently diagnosed with acute hiv 1 and syphilis ( vdrl negative tpha positive). He had all the basic symptopms
I had no symptoms. Still got myself tested. The results as below-
Hiv rapid screening - negative
Hiv 1 and 2 antibody - negative
Hiv elisa - negative
Syphilis vdrl - negative
Hbsag - negative
HCA - negative.
I am planning on doing the above tests again after 3 months.
Please explain what additional tests do i need to do now to get fully assured of not having any virus- do i need to do hiv rna and tpha syphilis now?
Also what are the chances that i have the virus but undetectable in the above tests because the antibodies haven't been developed yet?
Answers (22)
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Your partner has acute HIV-1 (very high viral load, very infectious phase) + active syphilis (TPHA positive + VDRL negative can still mean early active infection or recent infection).
You have no symptoms and have already tested negative on:
• HIV rapid screening
• HIV-1/2 antibody
• HIV ELISA
• VDRL (syphilis)
• HBsAg & anti-HCV
This is extremely reassuring — especially if your last sexual contact with your partner was more than ~4–6 weeks ago (typical window for most antibody tests to become positive).
However, because your partner is in the acute HIV phase (highest transmission risk per act), and syphilis is also transmissible, you are correctly planning to retest at 3 months. That is the gold-standard final confirmation time for antibody tests.
Chances you have the virus but tests are negative (window period)
• HIV:
• Modern 4th-generation HIV-1/2 antibody + p24 antigen tests (ELISA/rapid) detect ~95–99% of infections by 4–6 weeks post-exposure.
• If your last exposure was >6 weeks ago → chance of false-negative antibody test is 4–6 weeks ago → VDRL negative is very reassuring (chance of active syphilis is extremely low).
Overall: If last contact was more than 6 weeks ago → your current negative results already make infection very unlikely. If contact was more recent → small residual window period risk remains.
Next Steps
1. Additional tests you can do NOW for maximum early assurance
• HIV RNA (viral load / NAT / PCR) — detects HIV as early as 10–14 days after exposure, and is >99% accurate by 3–4 weeks.
→ This is the best test to rule out acute HIV right now. If negative → you are almost certainly uninfected (even if exposure was only a few weeks ago). Highly recommended in your situation.
• Syphilis TPHA — you can repeat it now (although it was not done on you yet). If negative → syphilis is ruled out. If positive → further evaluation needed (but VDRL negative would suggest old/treated infection, not active).
2. Your planned retest at 3 months
• Repeat HIV-1/2 antibody (4th-generation ELISA or rapid) at 90 days — this is considered definitive (CDC/WHO standard).
• Repeat VDRL at 3 months (or 6 months if very high-risk exposure).
Health Tips
• Safest current plan (for maximum peace of mind right now):
• Do HIV RNA PCR this week → if negative → HIV is ruled out with ~99.9% certainty.
• Do TPHA now → if negative → syphilis is ruled out.
• Still repeat antibody tests at 3 months for final 100% confirmation (standard practice).
• Until tests are complete: use condoms consistently (or avoid sexual contact) to prevent any theoretical transmission.
• Your partner should start HIV treatment (ART) immediately — once viral load is undetectable (usually 3–6 months), transmission risk drops to zero (U=U).
• Syphilis treatment (usually penicillin injection) should also be started urgently by your partner.
• Emotional support is very important — this is stressful. Consider speaking to an HIV counselor or infectious disease specialist together.
You have done everything correctly by testing promptly.
With the negatives you already have + HIV RNA (if you do it) → your risk is extremely low.
If you can tell me roughly how long ago your last sexual contact was, I can give even more precise risk estimates.
For support or help interpreting future results, consult online anytime.
Take care of each other
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. Repeat the test after 3 months , It’s better to take post exposure prophylaxis.
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Elisa igm and igG and blood culture ..and as your immunity decreases there is chance of getting viral infection quickly...veneral test too..crp..wbc count..cd4 count..cd8 count..lymphocytes cbc..hbsag vdrl hiv ...test...procalcitonin...kindly consult a physician
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Collagen sheets application is better
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You have taken the right and responsible steps by getting yourself tested.
Your current test results:
HIV rapid test – negative
HIV ELISA – negative
VDRL (syphilis) – negative
HBsAg – negative
HCV – negative
These results are very reassuring.
About HIV risk and window period
HIV tests detect infection in the following time frames:
HIV RNA PCR: detectable from 10–14 days
4th generation HIV Ag/Ab test: detectable by 18–28 days
Antibody tests (rapid/ELISA): reliable by 6–12 weeks
If your exposure was recent, there is a small theoretical possibility of being in the window period, where antibodies are not yet formed — but this risk reduces significantly after 4 weeks.
If your test was done more than 4 weeks after last exposure, your current negative results are strongly reassuring.
Do you need HIV RNA test now?
Not routinely required if:
You are asymptomatic
Initial tests are negative
You plan repeat testing at 12 weeks
HIV RNA is mainly advised when:
Very high-risk exposure
Symptoms of acute HIV
Need for early diagnosis within 2 weeks
Otherwise, repeat 4th-generation HIV test at 12 weeks is considered final and conclusive.
About syphilis testing
TPHA positive with VDRL negative in your partner indicates early or past syphilis.
Your VDRL is negative, which is reassuring.
If exposure was recent, repeat:
VDRL + TPHA at 12 weeks
You do not need TPHA now unless advised by a venereologist.
Chances that virus is present but undetectable now
At this stage, the probability is very low, especially if:
You have no symptoms
Initial ELISA is negative
You plan repeat testing at 3 months
This is why international guidelines recommend final testing at 12 weeks.
Next Steps
What you should do now:
Avoid unprotected sexual contact until partner completes treatment and becomes non-infectious
Repeat HIV 4th-generation test + VDRL at 12 weeks
No preventive treatment needed unless exposure was within 72 hours (PEP window)
Health Tips
Current results are reassuring
✅ No immediate additional tests required
✅ Repeat testing at 3 months is final
✅ Risk of undetected infection at present is very low
For personalized counselling and mental reassurance, you may consult me directly through a paid consultation
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Go for repeat test after 3 months
Regular follow up must.
Consult to nearby ART centre they will council you and give you proper follow up guidelines
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Consult to doctor
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Pcr test
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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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There are multiple factors which needs to be discussed before coming to the conclusion
Please consult for all your queries.
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Repeat tests after 3 months. If any symptoms occurs, seek test and treatment asap.
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Repeat anti viral panel after 3 and 6 months.
It’s better to take post exposure prophylaxis for a month. Consult a doctor
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You should consult a proper physician and inspire of negative results go for post exposure prophylaxis.
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Need some more details kindly consult
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You are on good track now,after 3 months hiv test is required tpha for syphilis also required. Now you already done your hiv test but its inconclusive because of virus low activity, so you required test after 3 months and now its confirmed test.
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Dr. Sajid Ali
General Practitioner
4 yrs exp
Kanpur
Go PEP treatment
And repeat test after 3 month
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Dr. Vetsa Sri Krishna Chaitanya
General Physician
7 yrs exp
Rajahmundry
Need a few more details please consult for further evaluation and treatment
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Dr. Thresia Pereira
General Physician
37 yrs exp
Mumbai
Consult the same doctor as your partner is positive
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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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Dr. Anmol Kudal
General Physician
5 yrs exp
Nashik
Kindly take postprophylaxis treatment.
Repeat 4th generation elisa at 2 weeks 3 months and 6months .
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Dr. Nimmi Mulwani
General Physician
10 yrs exp
Ahmedabad
Consult and ID specialist
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