It is often pronounced "kosh", but in German the "ch" would sound like the "ch" in Scottish "loch".
Further information: The name is German in origin and is actually correctly pronounced with a hard h. The final phoneme of 'ch' should not be pronounced as a ck, nor is it a 'soft' h. It is a unique and distinct hard hsound. The vowel is a short o like in the word hot.However, like many German names, it has been anglicised in some regions so that various individuals with this family name may pronounce it as cook, cock, koch and so on.
The Wikipedia entry for Heckler & Koch is not strictly correct. It gives the pronunciation as: hÉ›klÉʔʊntˈkÉ”x. Explanation for the "ch" (transliterated as "x") part is as follows:
xBach
loch (Scottish)
Robert Koch had a brother, Charles, who came to New Zealand. Charles had a son (named Charles also) and Charles (the son) had a daughter, Hilda Sarah Rose Koch who was my grandmother. I don't know of any other siblings of Robert.
poo and wee
Robert Koch .
Robert Koch worked on tuberculosis, not cholera. He is known for isolating and identifying the bacterium Mycobacterium tuberculosis as the cause of the disease.
Robert Koch used Bacillus anthracis, the causative agent of anthrax, to develop his postulates. These postulates are a series of criteria used to establish a causative relationship between a microorganism and a disease.
Koh or Kok(if you're referring to the name of the doctor/biologist who discovered the tuberculosis bacillus).
Blake Koch is not related to the Koch brothers, Charles and David Koch. He is a professional race car driver and is not associated with the Koch family, known for their significant influence in business and politics. The Koch brothers have a well-documented wealth and political involvement, while Blake Koch's career is primarily in motorsports.
Beate Koch was born in 1967.
Ed Koch's birth name is Koch, Edward Irving.
Eik Koch's birth name is Eik Koch Snchen.
Garrison Koch's birth name is Garrison Anthony Koch.
Heinrich Koch's birth name is Heinrich Georg Koch.
Jay Koch's birth name is Julius Koch Jr..
Ralf Koch's birth name is Ralf Karl Koch.
Rod Koch's birth name is Rodney Allen Koch.
Hermann Koch and Mathilde Julie Henriette Biewend.
Federico Koch's birth name is Federico Ral Koch Valenzuela.