Notes
Slide Show
Outline
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Protective Measures For Prevention Of SARS Infection
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What We Know About SARS
  • Viral infection – a new mutation of coronavirus is suspected as the cause.
  • Affects all age groups, highest number of deaths have been among people with pre-existing chronic conditions.
  • Suspected to have originated in Guandong, China.
  • Causes atypical pneumonia in infected patients.
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Coronavirus Family
  • Cause mild to moderate respiratory illnesses such as common cold.
  • Able to survive in dry air for up to 3 hours.
  • Can be killed by exposure to ultra-violet light, so they will not survive under sunlight.
  • Mutate easily, and each mutation triggers off an epidemic of respiratory disease.
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Methods Of Transmission
  • Most frequent method of transmission of coronavirus from person to person is droplet transmission.
  • If the sick person coughs or sneezes, the virus can be carried in saliva droplets to people nearby, infecting them.
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Airborne Transmission
  • Coronavirus family also has the property of surviving in dry air/surfaces for up to 3 hours.
  • In these conditions, the virus crystallizes, and can float in the air like dust.
  • It is suspected that the SARS
  •    virus can be transmitted in
  •    this manner.
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Infectivity And Virulence
  • Infectivity is the ability of a virus to jump from one person to another. The recipient must receive a dose large enough to cause the disease. From epidemic reports, it appears that SARS virus has low infectivity (ie it requires a large dose to pass on to the recipient). Other members of the coronavirus family have very high infectivity.
  • Virulence is the property of the virus to cause damage to the patient’s organs. The SARS virus is very virulent. Other members of the coronavirus family have low virulence.
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Incubation Period
  • After the virus enters the body, it requires 3-10 days incubation period before the disease appears.
  • According to current data, infected people do not pass on the virus to others during the incubation period.
  • They become infectious only when the first symptoms appear: cough, sneezing – which spread droplets containing virus particles.
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Attenuation
  • Attenuation is a phenomenon seen in some members of the coronavirus family, where the virulence decreases when it jumps from person to person.
  • The SARS virus seems exhibit this phenomenon (however, there are no studies yet to prove this).
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Symptoms
  • Cough, nasal congestion, sneezing
  • High fever (39°C or higher)
  • Severe muscle and joint pain
  • Difficulty in breathing – similar to asthma
  • Continuous localized pain in the chest, which increases when taking a breath
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Risks To PMS Employees
  • Customer Engineers, Clinical Specialists and sales people who visit hospitals are under risk of contracting SARS, and must take precautions.
  • In the event an employee is suspected of having contracted the disease, he/she must must take steps not to expose colleagues and customers to risk.
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Precautions To Take When Visiting ICUs
  • Leave all personal belongings, not relevant to the visit, in the office.
  • Take a N95 or FFP-1grade mask from the office.
  • Before entering the unit, put on the mask as per instructions, and check for leakage.
  • After entering the unit, ask for a pair of surgical gloves before handling equipment.
  • Do not place belongings, tools etc on the floor or on exposed surfaces. Request a paper towel from the staff to spread on the surface.
  • If you need to bring equipment/parts back to the office, have them sterilized according to hospital procedure by a member of the ICU staff.
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When Leaving The ICU…
  • After exiting the unit, remove the mask first and discard it, then remove the gloves.
  • Wash hands thoroughly with chlorhexidine scrub solution.
  • Do not re-use a mask.
  • Do not touch a used mask without wearing gloves.
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Safety In Public Places
  • So far, all recorded SARS cases have developed the disease only after having prolonged and close contact with a patient (eg. family members, doctors and nurses).
  • There are no recorded instances, where the disease was transmitted via casual contact, traveling in public transport etc.
  • A person can only pass on the infection after symptoms appear.
  • Only a very small percentage of the population have the disease (eg 90 out of 4 million), and they are sequestered.
  • Therefore, wearing masks in public places and transport will not give any appreciable protective benefit.
  • However, if you suspect that you have become infected with SARS, wearing a mask when traveling to the hospital is your civic responsibility.
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What To Do If You Think You Have SARS
  • If you develop fever, cough and muscle pain:
    • Inform your supervisor
    • Go to the company doctor immediately
  • If you are quarantined by health authorities:
    • Inform your supervisor
    • Compile a list of colleagues and customers you have had contact with for the last 3 days and forward it via e-mail to your supervisor
    • Do not leave your house for any reason, or entertain visitors during the quarantine period
    • If you develop any of the symptoms during the quarantine period, inform relevant health authorities immediately