Are you asking if your travel insurance (I assume it includes health coverage) will be adequate to meet the requirement for health insurance in Switzerland? I will be provided health insurance by a non-swiss company for my time in Switzerland so I would hope that insurance would be adequate rather than having to buy additional health insurance in Switzerland. So I think the real question is if you can avoid buying Swiss health insurance if you can prove you have health insurance that covers you in Switzerland from another source. I would assume yes but does anyone know the answer?