Microbiology
The most common cause of urinary tract infection in the community is

Escherichia coli
Proteus vulgaris
Klebsiella pneumoniae
Citrobacter freundii

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Microbiology
Which statement is true about flavouring materials spices, garlic etc. added to Dill pickles?

These markedly stimulate or inhibit the acid forming bacteria
They may improve texture of the pickle
None of these
They may be source of considerable numbers of undesirable micro-organisms and cause off-fermentations or spoilage of pickles

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