Biosaftey precaution grade 3 is practiced in labs handling all except?
A. Human influenza virusB. St louis encephalitis virus
C. Coxiella burnetti
D. Mycobacterium tuberculosis
Answer.
A. Influenza Virus where Biosafety 2 comes into picture.
BIOSAFETY
LEVEL 1
This level is
suitable for work involving well-characterized agents not known to consistently cause disease in healthy adult humans and
of minimal
potential hazard to laboratory personnel and the environment
It includes several
kinds of bacteria and viruses including E. coli, Chicken pox, a well as some
cell cultures and non- infectious bacteria
The precaution
includes basic and simple techniques as gloves, eye, facial protections. The
laboratory may not be isolated from general traffic areas and ergonomics do not
require stringent working SOP’s
BIOSAFETY
LEVEL 2
This level is
similar to Biosafety Level 1 and is suitable for work involving agents of
moderate potential hazard to personnel
and the environment.
Includes various
bacteria and viruses that cause only mild
disease to humans or are difficult to contract via aerosol in a lab
setting, such as Hepatitis , influenza A, Lyme disease , Dengue, salmonella
mumps, bacillus subtilis, HIV, scrapie, MRSA etc.
[FAQ] There is trained
laboratory personel for working and handling BS 2 SOP’s (SOP = standard
operating protocols)
BIOSAFETY
LEVEL 3
This level is
applicable to clinical diagnostic teaching research or production facilities
in which work is done with rare or exotic agents which may cause serious or potentially lethal disease
as a result of exposure by the
inhalation route.
It includes various
bacteria and viruses that can cause severe to fatal disease in humans but for
which vaccines or other treatment exist, such as Anthrax, West Nile Virus,
SARS, Typhus, JE, TB, Encephalitis, RMSF
Laboratory
personnel have specific training in handling pathogehic and potentially lethal
agents, and are supervised by competent scientists who are experienced in
working with these agents. The laboratory has specialized working and safety
mechanisms as ventilations, exhausts, access, recommended safe practices, SOP’s
