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How the
virus spreads |
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1. Can
Coronaviruses and the novel Coronavirus be
transmitted from person to person?
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Yes, some Coronaviruses can be transmitted from
person to person, usually after close contact
with an infected patient, for example, between
family members or in a healthcare centre.
The novel Coronavirus responsible for
respiratory disease COVID-19 can also be
transmitted from person to person through close
contact with a probable or confirmed case.
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2. How
is the novel Coronavirus transmitted from person
to person?
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The new coronavirus is a respiratory virus which
spreads primarily through close contact with an
infected person. The primary route is through
respiratory droplets from the infected persons,
for example through:
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droplets of saliva, coughing and sneezing
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close personal contact
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touching an object or surface contaminated
with the virus, then touching your mouth,
nose or eyes before washing your hands
In rare cases, faecal contamination.
Normally, respiratory diseases cannot be passed
on through food. However, safe food hygiene
practices should be followed, and contact should
be avoided between raw and cooked food.
Studies are under way to better understand how
the virus is transmitted.
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3. What
is the definition of close contact?
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The European Centre for Disease Prevention and
Control defines close contact as follows:
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A person living in the same household as a
COVID-19 case;
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A person having had direct physical contact
with a COVID-19 case (e.g. shaking hands);
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A person having unprotected direct contact
with infectious secretions of a COVID-19
case (e.g. touching used paper tissues with
a bare hand);
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A person having had face-to-face contact
with a COVID-19 case within 2 metres and >
15 minutes;
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A person who was in a closed environment (e.g.
classroom, meeting room, hospital waiting
room, etc.) with a COVID-19 case for 15
minutes or more and at a distance of less
than 2 metres;
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A healthcare worker (HCW) or other person
providing direct care for a COVID-19 case,
or laboratory workers handling specimens
from a COVID-19 case without recommended
personal protective equipment (PPE) or with
a possible breach of PPE;
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A contact in an aircraft sitting within two
seats (in any direction) of the COVID-19
case, travel companions or persons providing
care, and crew members serving in the
section of the aircraft where the index case
was seated (if severity of symptoms or
movement of the case indicate more extensive
exposure, passengers seated in the entire
section or all passengers on the aircraft
may be considered close contacts).
The epidemiological link to a probable or
confirmed case may have occurred within a 14‐day
period before the onset of illness in the
suspected case under consideration.
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4. How
to manage a close contact with a confirmed
COVID-19 case?
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Under the Ministry's orders, the local health
authorities must place any close contacts of a
probable or confirmed case under quarantine with
active surveillance for 14 days.
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5. Can
the new Coronavirus infection be contracted by a
case that presents no symptoms (asymptomatic)?
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It is known that the virus spreads mainly
through respiratory droplets expelled by
coughing or other symptoms.
However, some evidence suggests that
transmission can also occur from an infected
person, who has only mild symptoms.
Some reports have also indicated that people
without symptoms can also transmit the virus.
This is particularly true in the early stages of
the disease, especially two days before symptoms
develop. Studies to assess the likelihood of
such event are currently underway.
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6. Who
is at greater risk of infection?
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People who live or have travelled in areas at
risk of novel coronavirus infection or people
who have been in close contact with a confirmed
or probable case of COVID-19.
The areas at risk of novel coronavirus infection
are those where local transmission of SARS-CoV-2
is present, as identified by the World Health
Organization. The risk level in those areas is
higher than in areas where only imported cases
are present.
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7. Are
health workers at risk from a novel coronavirus?
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Yes, they can be, because they come into contact
with patients more often than the general
population. The World Health Organisation (WHO)
recommends that health workers follow
appropriate prevention and control measures for
infections in general and respiratory infections
in particular.
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8. When
can a confirmed case of COVID-19 be declared
recovered?
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A COVID-19 patient can be considered cured after
the resolution of symptoms (fever, rhinitis,
cough, sore throat, difficulty breathing,
pneumonia) and after two negative swab tests for
SARS-CoV-2 performed 24 hours apart.
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9. Can
the new coronavirus be transmitted by mosquitoes?
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To date there is no scientific evidence of
transmission through ticks, mosquitoes, or other
insects, which can carry other types of viruses
(arbovirus), which are responsible for diseases
that are completely different from Covid-19,
such as dengue and yellow fever.
Moreover, there is currently no data to suggest
that other coronaviruses of the same family of
SARS-CoV-2 (such as SARS and MERS viruses) can
be transmitted by mosquitoes. It is therefore
highly unlikely.
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