Pathogens mentioned in different pharmacopoeias with ATCC number and morphological characters.

In pharmaceuticals, pathogen testing is very important and critical testing in which different media are used to identify whether specified pathogen is present in the product or not. This pathogen identification is part of Microbial limit testing (MLT) in which first enrichment of sample is performed and then enriched sample is streaked on different media to identify the pathogens. Pathogens should be absent from the sample as per pharmacopoeia. If pathogen is present in the sample then product is not suitable for use. Different pharmacopoeias ask for testing of different pathogens. Below is the table showing list of pathogens as per IP,BP and USP.

ATCC number and morphological characteristics are also mentioned in this table.

S.No.	Name of Pathogens to be tested as per different Pharmacopoeia			ATCC No.	Morphological characters
	IP	BP	USP
1	Bile tolerant gram negative bacteria	Bile tolerant gram negative bacteria	Bile tolerant gram negative bacteria	NA	Gram negative rod shaped
2	Escherichia coli	Escherichia coli	Escherichia coli	8739	Gram negative rod shaped
3	Salmonella	Salmonella	Salmonella	14028	Gram negative rod shaped
4	Staphylococcus aureus	Staphylococcus aureus	Staphylococcus aureus	6538	Gram positive round shaped
5	Pseudomonas aeruginosa	Pseudomonas aeruginosa	Pseudomonas aeruginosa	9027	Gram negative rod shaped
6	Clostridia	Clostridia	Clostridia	19404	Gram positive drum stick shaped
7	Candida albicans	Candida albicans	Candida albicans	10231	Gram negative rod shaped
8	Shigella	Not mentioned	Not mentioned	12022	Unicellular yeast

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