Is it mandatory to take Health Insurance before approval stamp on my visa passport for UK as domestic worker i?

Is it mandatory to take Health Insurance before approval stamp on my visa passport for UK as domestic worker in a private household?
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As a matter of interest John, have you been offered a job and then been told that you have to buy health insurance before you come here? If this is so then you are being scammed because unless you are a citizen of a EEA (European Economic Area) country then you cannot come to the UK as a domestic worker because there is no visa that would allow you entry to this country as a domestic worker if you do not already work for the people who you will be working for here. All people who come to work in the UK are automatically covered by our National Health Service so there is no need whatsover for you to have to purchase health insurance...travel insurance for your journey here probably yes, but not health insurance.
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