Recipients of the new corona virus, «Emirates Today», reported that the repeated results of conflicting smears extended the length of their stay inside the house isolation, indicating that the result of the first swab appears negative and the second is positive, although they have no symptoms, in addition to not receiving any treatment during a period Insulation.
Doctors noted that the accuracy of the results of the survey globally ranged between 60 and 70%, and the patient's isolation period can be terminated after 14 days, as long as there are no symptoms.
And required the Department of Health in Abu Dhabi, to confirm the result of the survey, the presence of two positive or negative results, a difference of more than 24 hours, without symptoms.
In detail, the respondents affirmed: (Omar Al-Masry, Ahmed Saleh, Magda Ismail, Marwan Al-Ali, Mayada Saqr and Nouf Ahmed) that their isolation was prolonged due to the inaccuracy of the results of the exams, despite the doctors ’assurance that they recovered, and there is no danger from their movement, Or you are afraid of transmitting the infection to others, but the procedures require a re-examination to achieve two negative results by a difference of 24 hours, indicating that they have conducted six smears «Corona», to ensure their recovery, and they remain in the house isolation, they cannot move, due to the presence of a bracelet in their hands that monitors their movements .
Doctors explained that the examination of «Covid-19» in the whole world is not 100% accurate, as the accuracy of the tests in all countries does not exceed 70%, and for this reason the examination is repeated twice, because it is difficult for the result of the examination to be wrong twice in a row, indicating There are other factors that increase the possibility of a false negative examination, including that the sample was not sufficient, or the smear did not enter properly, or the sample was not stored in the proper way, or the person was at the beginning of infection on the first day of the injury, and it may be negative.
An infectious disease consultant, Dr. Ahmed Al Hammadi commented, “The sensitivity of the examination and its health in the world is from 60 to 70%, in the nasal swab, where the error is contained in taking the swab, or the person is at the end of the disease and the amount of the virus is small, and it is possible to occur In vitro mixing, or contamination with the sample of an infected person.
He pointed out that the examination is re-examined, for cases that turn from positive to negative, to ensure that the virus has ended, and is no longer present in the patient's body.
An infectious disease consultant, Dr. Moza Al-Hassani, explained that one of the countries published a comparative study on the swabs it makes for the virus and between a farm for the virus at certain times, and the result showed that after 11 days, there was no cultivation of the virus, which gives the possibility that the virus has become weak, nor It can be infected after 11 days of illness.
The head of the Department of Infectious Diseases Programs at the Abu Dhabi Center for Public Health, Dr. Faisal Al-Ahbabi, stated that the result of the first smear of the patient, when it gives a negative result, and the second smear gives a positive, we call the first sample a "false negative", indicating that this happens with a small percentage.
He pointed out that one of the procedures for discharge from the hospital or isolation, and declaring his recovery, that he had two negative examination samples or one negative sample, and the person passed for 14 days, and he did not have satisfactory symptoms, then his recovery could be announced.
The Health Department in Abu Dhabi confirmed to Emirates Today that the procedures for announcing the healing of Corona patients require more than one swipe to confirm the result of the examination, as the disease is diagnosed based on an assessment of the health status and the result of the tests, and to confirm the result of the survey, there must be two positive results Or two negative results, a difference of more than 24 hours, without symptoms.
She indicated that this test is carried out by taking a swab from the nose or throat, and sending it to the laboratory to search for any signs of the presence of the genetic material of the virus, as these diagnostic tests used in hospitals have proven their effectiveness very reliably.
And about studies that indicate that the patient after about 10 days of infection with the virus is not a carrier of the infection, the department said: «There are a lot of studies related to (Covid-19), but health facilities are obligated to follow the instructions issued by the health authorities with regard to ending The period of quarantine or isolation, and there are several factors that affect this, including the development of accurate and reliable examination of antibodies ».
The department stressed the necessity to follow the directions issued by the Department of Health and the Abu Dhabi Center for Public Health regarding ending the isolation case, and it is necessary to adhere to and adhere to the isolation procedures for a period of 14 days.
Quality control
The Department of Health in Abu Dhabi reported that the requirements of the department for examinations «Covid-19» include quality control of the PCR test device, according to the manufacturer’s instructions, with the need for an internal and external quality control test, and for workers involved in the work and operation of the test, and interpretation of its results, The scientific qualifications and necessary training, and safe handling of the collection, transmission and treatment of laboratory samples, to ensure that the risk of injury is not transmitted to workers, with the importance of the availability of the necessary personal protective tools, in addition to ensuring compliance with the directives and instructions of the department for reporting results, requirements and policies for managing and disposing of medical waste Infectious and preventive maintenance and calibration of laboratory equipment, stressing that in the event of any observations, or complaints, please contact the Abu Dhabi Government number 800555, for a decision.
Abu Dhabi Health Authority:
"Medical facilities are bound by health authorities' directives to end the period of quarantine or isolation."