# Typhoid Vaccine & Colorectal home test kit.

**URL:** <https://boards.straightdope.com/t/typhoid-vaccine-colorectal-home-test-kit/736419>\
**Category:** Factual Questions\
**Created:** [November 2, 2015, 2:46pm UTC](https://boards.straightdope.com/t/typhoid-vaccine-colorectal-home-test-kit/736419 "2015-11-02T14:46:14Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![elbows](https://avatars.discourse-cdn.com/v4/letter/e/b3f665/32.png) [@elbows](https://boards.straightdope.com/u/elbows)\
**Post date:** [November 2, 2015, 2:46pm UTC](https://boards.straightdope.com/t/typhoid-vaccine-colorectal-home-test-kit/736419/1 "2015-11-02T14:46:14Z")

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So I have a quick question about interaction between the oral vaccine for Typhoid, (live vaccine, in my fridge, 4pills, take on an empty stomach, with a full glass of water, every other day over a week.) and the take home colorectal cancer test (requires 3days no fruit juice, then three samples over three days, mail back to lab.)

I was suffering terrible headaches, then the Dr put me on a new med to try out. For these two reasons I delayed starting the Typhoid vaccine. So all the rest has settled down, but when I was at the office, they gave me a colon test to complete.

My question is; will starting the Typhoid series, screw up the colon test results? I’m running out of days before departure, to do them separately.

I really, don’t want to be still taking the Typhoid only a day or two before getting onto the plane. It’s a longish journey and I really, really don’t want to undertake it feeling crap. Should I be concerned? Or is it no biggy?

ThankI got you in advance for your advice!