SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/trav-iodine

Who should NOT drink water disinfected with iodine, per CDC?

Not for pregnancy or thyroid problems.

Start playing free

  1. Teenagers
  2. Anyone over 6 feet tall
  3. People who are pregnant or have thyroid problems ✔

Why: Iodine can affect the thyroid. CDC says not to use it if pregnant, if you have thyroid problems or an iodine allergy, and not for more than a few weeks.

Huh, didn't know that: CDC says chlorine dioxide tablets can work against Cryptosporidium if used as directed.

The dad joke
Why did the tablet go to camp? It wanted to dissolve its problems!
Like this card?
Play the game

References

Answer: People who are pregnant or have thyroid problems. Iodine can affect the thyroid. CDC says not to use it if pregnant, if you have thyroid problems or an iodine allergy, and not for more than a few weeks.

  1. CDC Travelers' Health: Water Disinfection wwwnc.cdc.gov/travel/page/water-disinfection
    Do NOT drink water that has been disinfected with iodine if you are pregnant
    Checked 2026-10-10.

Think this answer is wrong? Tap "Challenge this answer" on the card in the game and tell us why.

Test yourself in the game

TravelYou can renew a US passport by mail if your last one was issued within how many years?TravelCan a child under 16 renew a US passport by mail?TravelHow long is a US passport valid if it was issued before the holder turned 16?

That's stuff everyone should know.