STI and HIV testing in Buenos Aires for travelers

If you are traveling or living in Buenos Aires and want peace of mind about sexual health, testing here is straightforward, confidential and affordable. You do not need a doctor's order or local insurance, and results come back quickly. This guide covers what you can test for, when to test after a possible exposure, and how the process works at an accredited laboratory.

Do I need a doctor's order?

No — not as a private patient. You can book and pay for an STI and HIV panel with no prescription, no residency and no national ID; a passport is enough for identification. A medical order is only required if you want the test billed to an Argentine insurer or prepaga.

What a standard STI panel covers

• HIV — 4th-generation test (p24 antigen + antibodies)
• Syphilis — a non-treponemal test (VDRL or RPR) plus a treponemal test (such as FTA-ABS or TPHA)
• Hepatitis B (HBsAg) and Hepatitis C (anti-HCV)

An expanded panel adds chlamydia and gonorrhea detected by PCR. You can also request a single test if you only need one.

When should I test after a possible exposure?

Each infection has a "window period" — the time between exposure and the point at which a test can reliably detect it. Testing too early can miss a recent infection, so timing matters:

Infection	When a test becomes reliable
HIV (4th generation)	From ~2–3 weeks; repeat at 90 days for a definitive result
Syphilis	From ~3–6 weeks after infection
Hepatitis B and C	Weeks to a few months; retest if exposure was recent
Chlamydia / gonorrhea (PCR)	From ~1–2 weeks

Argentina's Ministry of Health uses a conservative 90-day window for a definitive HIV result, which is why a repeat test at three months is recommended after a high-risk exposure — even if an earlier 4th-generation test was non-reactive.

Is it confidential?

Yes. Your results are private and published only to your secure online portal, which you open with your own credentials. Testing for HIV and other STIs is confidential; you decide who, if anyone, sees the report.

How fast are the results?

• Serology (HIV, syphilis, hepatitis): typically 24–48 business hours
• PCR (chlamydia, gonorrhea): typically 48–72 hours

Everything is delivered to the online portal, so you can review results on your phone and share the PDF with a doctor anywhere.

Testing at a real, accredited lab

Laboratorio Aclimu is a physical clinical laboratory accredited by ITAES, with more than 30 years of experience and matriculated biochemists on site — not a booking platform that outsources your sample to an unnamed partner. We are at Marcelo T. de Alvear 2337, in Recoleta (Barrio Norte), a few steps from Subte line D (Pueyrredón station).

Booking takes about two minutes online. Bring your passport, come in at your slot, and receive your confidential results in the portal. If a result needs follow-up, we will tell you clearly what the next step is.

This article is for general information and does not replace medical advice. If you have symptoms or a known exposure, test without delay and consult a doctor.

Frequently asked questions

Can I get an STI test without a doctor's order in Buenos Aires?

Yes. As a private (particular) patient you can book and pay for an STI and HIV panel with no prescription, no local insurance and no residency — a passport is enough. A doctor's order is only needed if you want the test billed to an Argentine insurer or prepaga.

How long after exposure should I get tested for HIV?

A 4th-generation test (which detects the p24 antigen plus antibodies) can identify infection from about 2 to 3 weeks after exposure. For a definitive result, Argentina's Ministry of Health recommends repeating the test at 90 days, since that is the conservative window period.

Is STI testing confidential?

Yes. Your results are private and published only to your secure online portal, which you open with your own credentials. Testing for HIV and other STIs is confidential and you decide who, if anyone, you share the report with.

Which STIs can I test for?

A standard panel covers HIV (4th generation), syphilis (VDRL/RPR plus a treponemal test), and hepatitis B and C. An expanded panel adds chlamydia and gonorrhea by PCR. You can also test for a single infection if you prefer.

How fast are the results, and where is the lab?

Serology results are typically ready within 24–48 business hours, and PCR tests in 48–72 hours, all delivered online. Laboratorio Aclimu is at Marcelo T. de Alvear 2337, Recoleta (Barrio Norte), a few steps from Subte line D.

References

1. World Health Organization. Sexually transmitted infections (STIs) — fact sheet. Available at: who.int
2. Centers for Disease Control and Prevention. Getting tested for HIV. Available at: cdc.gov
3. Ministerio de Salud de la Nación Argentina. VIH, ITS y hepatitis virales. Available at: argentina.gob.ar