A medical worker takes a COVID-19 testing sample in Tam Hiệp commune, Thanh Tri district, Hanoi. (Photo: VNA)
Hanoi (VNA) – The on December 29 issued new
definitions of cases, suspected cases and close contacts in a bid to
detect and manage quicker and more effectively.
A suspected COVID-19 case has been redefined as a person who belongs to at
least one of categories:
A suspected COVID-19 case is a close contact (F1) and have at least two of
clinical symptoms including fever, cough, sore throat, runny nose, stuffy nose,
body aches, fatigue, chill, decreased or lost taste, impaired or lost sense of
smell, , diarrhoea, shortness of breath, respiratory inflammation.
A suspected COVID-19 case is also a person with epidemiological factors
(excluding F1) and having at least two of the above clinical symptoms. A person
with epidemiological factors (excluding F1) is the one who is present on the
same means of transport or at the same place, event, workplace, class, etc.
with a confirmed case (F0) currently in transmission period.
A person who has a positive antigen rapid test result for SARS-CoV-2 virus is
also considered a suspected case.
A person coming from active outbreak area(s) is considered a suspected case.
Meanwhile, a confirmed COVID-19 case (F0) is one belonging to one of the
following categories:
A confirmed cases is a person who has tested positive for SARS-CoV-2 by
detection of viral genetic material (PCR).
A confirmed case is a close contact (F1) and have a positive antigen rapid test
result for SARS-CoV-2.
A confirmed case is a person with clinical signs of suspected COVID-19.
A confirmed case is a person who has a positive antigen rapid test result twice
in a row (2nd test within 8 hours since the 1st test result for SARS-CoV-2
virus and has epidemiological factors (excluding F1).
The ministry also provided definition of a close contact (F1). Accordingly, F1
is a person who has direct physical contact including shaking hands, hugging,
kissing, direct skin-to-skin contact, body contact with a confirmed COVID-19
case (F0) during the transmission period of F0.
A person is defined as F1 if she/he still wore a facial mask while having
contact, communicate within two meters or in the same narrow, closed space and
for at least 15 minutes with the confirmed case in the transmission period of
F0.
A person is called F1 if she/he wore no mask when having close contact or
communication within two meters or was in the same narrow, closed space with F0
during the transmission period of F0.
Person who directly provides care, examination and treatment for a confirmed
case (F0) during the transmission of F0 without adequate use of personal
protective equipment (PPE) is F1 too.
The transmission period of the confirmed case is calculated from two days
before the onset of the disease until the test result is negative or the CT
value is >30.
For the confirmed case without symptoms, the transmission period is calculated
from two days before the date the sample is collected and tested positive for
SARS-CoV-2./.
Source: VietnamPlus
