Do remedial classes need health certificates?

For remedial classes, that is to say, to improve the academic performance of some students, it is said that for a remedial class, you also need to apply for a health certificate, because you will come into contact with many students when giving classes to students, so you must first ensure that your body is healthy, so as to avoid some cross talk with you when giving classes to students, so he needs to apply for a health certificate, which is also available to everyone.