how to write the plural of latin and greek words in english

[Mark Garland]

In the U.S., it seems that in common usage "bacteria" is becoming singular as
well as plural --"A deadly bacteria"  in news reports, for instance.  So
there's an answer to the original question--choose one form and use it for
both singular and plural!

Mark A. Garland
Florida Department of Environmental Protection
magarland at aol.com
garland_m at dep.state.fl.us