Farm animal biosecurity continued

Question 1

Sanitizers definiton

Answer 1

Aim: reduce the number of microbial contamination on inanimate surfaces to levels considered safe from a public health POV.

Do not destroy or eliminate all bacteria or microorganisms

Many are a formulation of a detergent and disinfectant

Question 2

Sterilization definition

Answer 2

A process (physical = extreme heat) or chemical (ethylene oxide) that destroys or eliminated all forms of life, especially microorganisms

Question 3

Define disinfectant

Answer 3

Applied to inanimate object that destroys or irreversibly inactivates most pathogenic microorganisms, some viruses, not usually spores.

Question 4

Define antiseptic

Answer 4

Applied to the surface of LIVING organisms or tissues to prevent or stop growth of microorganisms by inhibiting the organism or destroying.

NEVER USE IV!

Question 5

What are detergents?

Answer 5

Used to disperse and remove soil and organic material from surfaces allowing the DISINFCTANT to reach and destroy microbes

Lot of disinfectants have detergent properties

Detergents also reduce surface tension and inc penetrating ability of water thereby allowing more organic material to be removed from surfaces

Question 6

Chemical disinfectants

Answer 6

1. Acids
2. Aldehydes
3. Oxidising agents
4. Phenolics
5. Quaterny ammonium products
6. alcohols

Question 7

5. Know what a DEFRA approved disinfectant is and when it must be used

Answer 7

DEFRA approved disinfectant has undergone product efficacy testing and tested against specific pathogens and a general antimicrobial tests in labatory verified procedures

It is declared on the product label

website states the product, how to use, for what diseases and general use

Question 8

What are physical disinfectants?

Answer 8

Heat (steam, sterilization)
Light UV
Radiation - microwaves, gamma radiation