Bs. Nursing Lacture

1. The Chain of Infection
How diseases spread
By:AasanDas
Student: ICoNM-DUHS

2. The Chain of Infectio
nSource of Infection:
There needs tobesomeone orsomethi
ngcarryingthe badmicrobes thatcaus
e theinfection
There aremanysources ofinfection,th
ese can include
• People already infected
• Pets
• Unclean surfaces (door
handles, keyboards, toil
ets, etc)

3. The Chain of Infectio
nWayout formicrobes:
There needs to be a way
for the microbes to get ou
t of the infected person or
source
Routes include
• Sneezing (aerosols)
• Transfer of bodily fluid
s

4. The chain of Infection
Spreadof infection:
Bad microbesneed a way to bepa
ssed from person to person
This can be through
• touch
• sexual transmission

5. The chain of Infection
Wayin for microbes:
• Badmicrobeneed awaytoget intosome
one else beforetheycancauseaninfectio
n
• This canbethrough
– the food we eat
– inhalation of aerosols
– open cuts or sores
– things we put in our mou
ths

6. The Chain of Infection
Peopleat Riskfrom Infection:
Weare allatrisk from infection butesp
ecially the young,the elderly andthose
onmedication

7. Breaking the Chain
How to prevent the spread of Infection

8. Breaking the Chain
Source of infection:
• Isolateinfectedpeople
• Takecarewith rawfood
• Washpets on a regularbasis
• Disposeof nappies and soiledite
msappropriately

9. Breaking the Chain
Wayout for microbes:
Prevent any
– faeces
– vomit
– bodily fluids
– coughs and sneezes
getting ontosurfacesorhands

10. Breaking the Chain
Spreadof infection:
• WashhandsthoroughlyANDregularly
• Covercutsandopen sores
• Takeappropriateprecautionduringse
xualactivities

11. Breaking the Chain
Wayout for microbes:
Prevent any
• faeces
• vomit
• bodily fluids
• coughs and sneeze
s
getting ontosurfacesorhands

12. Breaking the Chain
People atrisk frominfection:
Everyone
• Take appropriate vaccin
ations
High risk people
• Keep away from people
who are infectious
• Take extra care about cl
eanliness
• Take extra care when co
ok and preparing food

13. THANK YO
U