Do I still have to get a health checkup in April even though I already submitted the health certificate?

Yes, this is mandatory for SIT students. SIT has the responsibility to have all students complete this health checkup.
Every students belonged to SIT on April are mandatory to take the health checkup.
Also, it is your responsibility to get this health checkup and to submit the result before entering Japan.
If you couldn't find an answer to your question or concern,
-For enrolled students: you can inquire us through the Scomb we shared when sending you the Before Arrival Guideline.
-For prospective students: you can inquire from
here.