california. e. coli is an important cause of illness in the united states. more information about e. coli, and steps people can take to reduce their risk of infection, can be found on the e. coli and food safety web page. people infected with the outbreak strain of e. coli o :h , by date of illness...
(picture not licenced under creative commons) shell : the shellin asolene platae is relatively thick and heavy, the aperture (shell opening) is round to oval in shape, in which the corneous operculum can be retracted. the sutures are relatively flat and the umbilicus is closed. the shell surface is...
organism. most people infected with stec o develop diarrhea (usually watery and often bloody) and abdominal cramps. most illnesses resolve on their own within days. some illnesses last longer and can be more severe. infection is usually diagnosed by testing of a stool sample. many clinical laboratories do not...
the current, start swimming toward the shoreline. if this isn't possible, float or tread water. if this still doesn't work, wave and yell for help. similarly, if you see someone in trouble, get the lifeguard immediately or call - - . never jump in to save the person yourself. • bring plenty of bags....
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