What is the difference in new hiv infections between Nigeria and Tanzania, United Republic of?

4,890 infections, with Nigeria ahead.

How many years of comparable data are there for Nigeria and Tanzania, United Republic of?

35 years are reported by both, from 1990 to 2024.

Where does this data come from?

Joint United Nations Programme on HIV/AIDS (2026) – with minor processing by Our World in Data, published as New HIV infections. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Nigeria vs Tanzania, United Republic of: New HIV infections

Nigeria

48,098 infections

in 2024

Tanzania, United Republic of

43,208 infections

in 2024

Nigeria rank

4th

Tanzania, United Republic of rank

5th

New HIV infections over time

Nigeria
Tanzania, United Republic of

How they compare

Nigeria currently reports 48,098 infections against 43,208 infections in Tanzania, United Republic of, a difference of 4,890 infections.

That makes Nigeria's figure about 1.1 times Tanzania, United Republic of's.

The two have swapped places 3 times across 35 shared years of data; in 1990 it was Tanzania, United Republic of ahead.

Nigeria ranks 4th and Tanzania, United Republic of ranks 5th of 144 countries.

Nigeria has averaged higher in every one of the 4 decades both report.

Head to head by decade

Decade	Nigeria	Tanzania, United Republic of	Difference	Ahead
1990s	186,960 infections	139,042 infections	47,917 infections	Nigeria
2000s	174,471 infections	100,112 infections	74,359 infections	Nigeria
2010s	114,085 infections	96,730 infections	17,354 infections	Nigeria
2020s	64,042 infections	61,517 infections	2,526 infections	Nigeria

Averages of every year both report within each decade.

Frequently asked questions

Which has higher new hiv infections, Nigeria or Tanzania, United Republic of?: Nigeria, at 48,098 infections against 43,208 infections in Tanzania, United Republic of as of 2024.
What is the difference in new hiv infections between Nigeria and Tanzania, United Republic of?: 4,890 infections, with Nigeria ahead.
How many years of comparable data are there for Nigeria and Tanzania, United Republic of?: 35 years are reported by both, from 1990 to 2024.
How do Nigeria and Tanzania, United Republic of rank globally for new hiv infections?: Nigeria ranks 4th and Tanzania, United Republic of ranks 5th of 144 countries.
Where does this data come from?: Joint United Nations Programme on HIV/AIDS (2026) – with minor processing by Our World in Data, published as New HIV infections. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Nigeria vs Tanzania, United Republic of: New HIV infections. Statizoid, drawing on Joint United Nations Programme on HIV/AIDS (2026) – with minor processing by Our World in Data. Retrieved 15 September 2026, from https://health.statizoid.com/compare/number-of-new-hiv-infections-per-year/nigeria/tanzania/

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About this data

Indicator: New HIV infections
Unit: infections
Source: Joint United Nations Programme on HIV/AIDS (2026) – with minor processing by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 144 places, 4,983 data points, 1990–2024
Last refreshed: 28 August 2026

Number of people newly infected with HIV in the last 12 months. This is the central estimate.