Want to find out how many sexual partners you’ve indirectly been exposed to?

Sexual health is something we should all be more mindful of, especially in the day of dating apps such as Tinder. In recent years there has been a rise in serious sexually transmitted infections like chlamydia and even HIV.

Now there’s a calculator that shows how many sexual partners you’ve potentially been exposed to – and its bloody scary reading.

Dr Felix, a UK online doctor service, put the tool together  an interactive feature that you can see your potential risk of getting some of the most common sexually transmitted infections based on the city where you live. Give it a go below.



Sexual exposure was derived using established formulas for a finite geometric series. An FGS uses a constant ratio between sequential terms, used extensively throughout mathematics. In this case, when the finite geometric series is applied, it results in the following formula to be derived for sexual exposure:

This was followed by gathering extensive statistical data for each sexually transmitted infection for every country from reliable sources such as World Health Organisation (WHO), Centers for Disease Control and Prevention (CDC) and other government websites. We used this gathered data to derive coefficients for all countries and each sexually transmitted infection in relation to their population to calculate the probability of you being infected with any of the eight common infections.

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