"Susceptable" is incorrect. The correct spelling is "Susceptible," meaning easily affected or influenced by something.
You use in case when saying or writing that you will or want to take an action in the event of something happening or something being true. For example: “Spelling can be tricky; in case you forget the difference between in case and encase, you can always refer back to this guide.” ...
You use in case when saying or writing that you will or want to take an action in the event of something happening or something being true. For example: “Spelling can be tricky; in case you forget the difference between in case and encase, you can always refer back to this guide.” ...