The U.S. media has given a lot of attention to H1N1 A Virus since the intial announced case in April 2009.  According to a recent article in the October issue of Infection Control Today, there are several mechanisms of transmission for influenza.  First of all, it comes through close contact between persons.  In several studies, close contact has been defined as three feet or closer.  Some studies say transmission can occur within six feet.

The mechanisms of transmission are:

1. Exposure to large respiratory droplets
2. Exposure to small-particle aerosols in the immediate vicinity
3. Direct contact transfer from contaminated hands to the nose and eyes

There is no proven evidence that shows one mechanism is more effectiven than the other.  Droplet transmission requires close contact and is generated by the infected person sneezing, coughing or talking.  Localized airborne transmission of influenza via small particles may occur in short distances (as much as 6 feet).   Influenza is not known to spread in airborne transmission of distances any longer than this, thus special air handling systems are not necessary to prevent the spread of influenza in healthcare settings.  Direct contact transmission of influenza has been suggested as a contributing factor in several studies.  It is therefore important to practice thorough and frequent handwashing as well as masks, gloves and gowns in a healthcare environment.

Are you practicing good techniques in your work place, in your home and in any place you come in contact with others to prevent transmission of the H1N1 A virus?  Does your employer have an H1N1 A virus prevention or response program should an outbreak occur in your company?

 – Jim Verzuh, Director of Marketing, BioScience Laboratories