First
UK death from Sars-like virus
Health
experts have moved to reassure the public after a patient diagnosed
with a Sars-like virus died in a hospital in Birmingham.
19
February, 2013
He
was one of three members of the same family who have caught the
virus, apparently by human to human transmission. Of the 12 people
known to have been infected with the virus globally, half have died.
The coronavirus responsible is distantly related to the one that gave
rise to Sars (Severe Acute Respiratory Syndrome), which caused global
panic and hundreds of deaths a decade ago.
But
– critically – it lacks Sars’ ability to spread easily among
populations, experts said. So far human-to-human transmission has
only been observed among close family contacts and the virus has not
spread into the wider community.
The
patient who died on Monday was being treated as an outpatient at
Queen Elizabeth hospital, Birmingham for an unrelated condition which
made him more susceptible to respiratory infections, the Health
Protection Agency said.
He
is believed to have caught the virus from his father who had recently
travelled to Saudi Arabia and Pakistan. The father remains severely
ill in hospital in Manchester, where he was transferred for treatment
on an ECMO machine, which oxygenates the blood when the lungs fail.
A
third member of the same family who was also infected with the virus,
developed a mild flu-like illness and has since recovered, without
needing admission to hospital.
An
earlier, unrelated case was diagnosed last September in a patient who
had flown to London for treatment after falling ill in Qatar. He
remains seriously ill, the HPA said.
Everything
You Need To Know About The Mysterious New Virus From The Middle East
February,
2013
How
many cases have been reported to date?
Only
two have been confirmed by laboratory tests. The first patient, who
was 60, died in Saudi Arabia after the virus was confirmed in July in
a Dutch laboratory. The second patient, a 49-year-old Qatari, has
been flown to London for treatment after travelling recently to Saudi
Arabia. He first showed symptoms on 3 September, was admitted to
intensive care in Doha, Qatar, on 7 September, and was flown by air
ambulance to London on 11 September. The virus was confirmed in this
case by the Health Protection Agency's laboratories in Colindale,
north London.
Other
cases are being investigated. Reports from Saudi Arabia suggest the
new virus has also been identified in a patient being treated in
Jeddah.
What
are coronaviruses?
They
were first identified in the 1960s, and were named after the
crown-like projections on the surface of the virus. They cause
respiratory infections in both humans and animals.
What
type is this, and what are the main symptoms?
The
new strain has been confirmed in only two cases so there is very
limited information on its impact, transmission and severity at this
stage. In these cases, patients had a fever, cough, shortness of
breath and breathing difficulties. It is not known whether these
symptoms are typical or whether the virus may be circulating more
widely but causing milder illness.
What
is the treatment?
Experts
do not have enough information on the virus to make specific
treatment recommendations, and can only provide acute respiratory
support to those in hospital, the Health Protection Agency says.
How
do you catch the infection?
Such
viruses typically spread in a similar manner to the flu virus. The
new coronavirus is therefore likely to be passed from person to
person when an infected person coughs or sneezes.
How
contagious is it?
Transmission
appears to be "very limited", says the agency: if it were
very contagious, there would have been more cases in more countries,
as well as in those caring for the two cases, the first of which
happened more than three months ago. The incubation period is
currently thought likely to be seven days.
However,
the agency says it is bests to err on the side of caution. The
patient in the London hospital is being treated in strict isolation,
and staff are wearing appropriate protective equipment and clothing,
including respirators, goggles, gowns and gloves.
Coronaviruses
are fairly fragile, surviving outside the body for only about 24
hours. They are easily destroyed by detergents and cleaning agents.
Where
has this virus come from?
No
one knows. It may be a mutation of an existing virus. Some new
infections come from viruses that have been circulating in animals or
birds. These are known as zoonoses. These may sometimes cause mild
infection in some species and more serious ones in others. There is
no evidence at the moment that this is a zoonosis.
Is
there a vaccine?
No.
Is
there a laboratory test?
Yes
but it is complex, using a system know as PCR, which involves
amplifying small pieces of DNA and then sequencing the genetic
material.
What
should I do if I am planning on travelling to the Middle East?
Continue
with your plans. The authorities are keeping travel advice under
review, however.
If
I visited the Middle East and have signs of a cold or fever, should I
be worried?
If
the symptoms are mild, you almost certainly have an infection caused
by a common respiratory virus. However, if the symptoms worsen
considerably and you become very breathless, contact your GP or NHS
Direct, mentioning whereabouts in the Middle East you have travelled.
Even with severe respiratory illness, another, more common pathogen
is a more likely diagnosis.
Is
this similar to Sars?
Sars
(a particularly severe form of pneumonia) was also caused by a
coronavirus, but these viruses can cause a range of symptoms, from
mild to serious. The two confirmed cases have experienced a serious
respiratory illness, which makes it similar in this respect.
•
Source: Health Protection
Agency
No comments:
Post a Comment
Note: only a member of this blog may post a comment.