Immigrants and expats. My colleague from India, who lives and works with me in the Netherlands, calls in sick at least once per month.

You're deservedly getting downvoted for this unprompted outburst of racism, but please: describe, in detail, how your colleague, regardless of country of origin, gets away with at least 8 hours of absence every month with a Dutch company, without triggering a remediation program with the bedrijfsarts.