Lol@you think anyone needs the interwebz to know that one.
swab is - because pertussis is in the lower rt by the time cough has become apparent. nasopharynx wouldnt show pertussis, and even if it did. does weakly gram- rod sound pretty diagnostic for pertussis? it doesnt grow at all on regular blood agar either, u need a Bordet-Gengou agar, which is about as common as peeps in a lab. sputum sample+aggl test is how u find this bug.
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Remember the String of Ears
"to the worm in horseradish, the world is horseradish."
Life just involves lying around in a circle waiting for little food pellets to start rolling around. You wish they would be evenly distributed among the the remaining four, but the others just start chowing down. In order to keep yourself alive, you are forced to eat as much as you can as fast as you can, and hope that will be enough to keep you alive until the next feeding time.