▁Category : Play ers ▁of ▁American ▁football ▁from ▁Louisiana <0x0A> </s> ▁E wing ella ▁amer icana ▁is ▁a ▁Gram - negative ▁rod , ▁and ▁the ▁only ▁species ▁in ▁the ▁genus ▁E wing ella . ▁ ▁It ▁was ▁first ▁identified ▁and ▁character ized ▁in ▁ 1 9 8 3 . ▁E wing ella ▁is ▁in ▁the ▁family ▁Y ers in ia ceae . ▁ ▁The ▁organ ism ▁is ▁rarely ▁reported ▁as ▁a ▁human ▁path ogen , ▁though ▁it ▁has ▁been ▁isolated ▁from ▁a ▁variety ▁of ▁clin ical ▁spec im ens , ▁including ▁w ounds , ▁s put um , ▁ur ine , ▁st ool , ▁blood , ▁syn ov ial ▁fluid , ▁conj unct iva , ▁and ▁per it one al ▁d ial ys ate . ▁ ▁The ▁b acter ium ▁is ▁named ▁in ▁honor ▁of ▁William ▁H . ▁E wing , ▁an ▁American ▁bi ologist ▁who ▁contributed ▁to ▁modern ▁tax onomy . ▁ ▁Ep ide mi ology ▁ ▁Res p ir atory - t ract ▁in fe ctions ▁following ▁retain ment ▁in ▁int ensive - care ▁units ▁has ▁been ▁observed ▁in ▁several ▁instances . ▁A ▁case ▁of ▁E . ▁amer icana ▁causing ▁o ste omy el itis ▁and ▁sept ic ▁ar th rit is ▁of ▁the ▁shoulder ▁joint ▁in ▁a ▁previous ▁int ra ven ous ▁drug ▁ab user ▁has ▁also ▁been ▁reported . ▁V asc ular ▁by pass ▁surg ery ▁is ▁a ▁reported ▁risk ▁factor ▁for ▁colon ization . ▁ ▁Deb ate ▁currently ▁exists ▁as ▁to ▁this ▁organ ism ' s ▁pred ile