Another important pioneer was Hungary physician Ignaz Semmelweis, who in 1847 brought down infant mortality at a Vienna hospital by instituting a disinfection procedure.

Many farmers have set up special disinfection procedures and sealed off their barns.

We had to evacuate Lady Cecelia from Rotterdam in haste; we had no time for proper disinfection procedures.

In 1847 Hungarian physician Ignaz Semmelweis brought down infant mortality at a Vienna hospital by instituting a disinfection procedure.

In these situations, use of protective clothing and disinfection procedures (together called barrier nursing) help prevent further spread of illness.

Everyone was masked and gloved, and disinfection procedures were ruthlessly enforced.

If recontamination arises after disinfection, to a level where a surface is suspect, the disinfection procedure should be repeated after cleaning if necessary.

This disinfection procedure kills any trace of the moss, preventing it from spreading to other worlds.

But exchanging clean needles for used ones is more effective, it said, because as time passes fewer drug users follow the proper disinfection procedures.

Independent originators of disinfection procedures: