Restraining SARS-CoV-2 in histopathology laboratory amid COVID-19 pandemic (original) (raw)
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Coronavirus Pandemic Restraining SARS-CoV-2 in histopathology laboratory amid COVID-19 pandemic
2022
Medical laboratory personnel encounter diverse health and workplace-related hazards leading to severe health challenges including the ravaging SARS-CoV-2 infection, which is the causal agent of COVID-19. It was first announced in Wuhan, China in December 2019 but started to spread globally by late January 2020. COVID-19 pandemic and subsequent global spreading poses additional danger to healthcare personnel particularly the laboratorians. Other health practitioners may engage patients by observing social / physical distancing, but how laboratory staff observe or apply same rule to infectious samples remain a notable question. Activities of laboratorians result in repeated exposure at close interactions to patient’s samples including SARS-CoV-2 infected specimens, which make them susceptible to COVID-19. Therefore, it is imperative to review mitigating measures in restraining possible exposure and spreading of SARS-CoV-2 in the best interest of laboratory staff and pathologists. It i...
Romanian Journal of Morphology and Embryology, 2020
In the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic, healthcare workers are at high risk to be infected with this new coronavirus, particularly when they handle not only patients, but also their body fluids. In Romania, even though the protective measures to be used by medical staff in emergency departments, clinical departments, radiology departments, clinical laboratories and morgues services are well known, there is little information about the protection of medical staff in the laboratories of cytopathology and histopathology. In this article, we will discuss the transmission routes of the new coronavirus, the surfaces it could contaminate in a hospital, as well as the modalities of its inactivation. We will present some guidelines for preparing the pathology departments to face the pandemic situation like the present one. Also, we will point out some possible recommendations/suggestions for protective measures to be taken by laboratory staff during the ...
Protective measures for COVID-19 for healthcare providers and laboratory personnel
TURKISH JOURNAL OF MEDICAL SCIENCES, 2020
In the COVID-19 pandemic, which affects the whole world, healthcare professionals (HCP) are at high risk of transmission due to their direct contact with patients with COVID-19. Therefore, how to ensure the triage of the patient with acute respiratory symptoms should be determined in advance, the contact distance should be arranged to be at least 2 m, COVID-19 suspect or diagnosed patient should be instructed to wear a surgical mask. During the care of these patients, HCP should wear their personal protective equipment (PPE) in accordance with the procedure and should not neglect hand hygiene. The samples of the patient with known or suspected COVID-19, patient should also be known to be risky in terms of contamination, and a risk assessment should be performed for the procedures to be performed in laboratories. The PPE should be used in accordance with the procedure to be performed. The protection of the HCP, who sacrifice at the risk of life, is possible only by complying with infection control and precautions.
2020
The 2019 Coronavirus pandemic which was initially referred to as 2019-nCoV, was first identified in Wuhan, China. Early response from the Chinese government included quarantine of infected persons, isolation and total lockdown of Wuhan province to prevent further spread. With the spread of the disease across national borders and declaration of the disease as a global pandemic, there has been a robust response by the international community to contain this deadly virus and prevent its further spread worldwide. Africa is not left out of this rampaging pandemic with documented cases in over 40 countries and still rising. Although extensive studies have been carried out on the novel SARS-CoV-2 on its pathogenesis, mode of infection and virulence but much is still unknown. However, potentially infectious samples are received routinely in the medical laboratory for analysis. This technical note reviews good laboratory practice (GLP) and processes across the different specialities of Medic...
Biosafety Measures for the Laboratories Engaged in the Diagnosis/Research of SARS-CoV-2
Acta Scientific Veterinary Sciences
Severe acute respiratory syndrome coronavirus 2, SARS-CoV-2 (COVID-19) infection emerged in Wuhan city of China, December 2019 and subsequently WHO announced COVID-19 pandemic. In the absence of effective antiviral drugs, change in genomic make-up which leads to evolution of new variant, effective biosafety measure in place, front line health care workers or laboratory personnel engaged in diagnosis and research are always at risk. As per the scientific risk assessments, the SARS-CoV-2 comes under Risk group 3 pathogens, and to prevent laboratory-acquired infections and disease transmission in the local population and environment, adequate biosafety containment levels are required. Therefore, non-propagative work and diagnosis of SARS-CoV-2 with inactivated samples should be performed at least under Biosafety Level 2 (BSL2), while diagnosis with non-inactivated samples should be carried out under BSL3 or BSL2 with inward unidirectional air flow along with BSL3 safety equipments and work practices. However, SARS-CoV-2 culture and isolation, as well as research and development activities, must take place inside the BSL3 containment facility. We attempted to establish adequate and efficient biosafety strategies for avoiding SARS-CoV-2 infections within the laboratory. This may be accomplished by conducting a systematic and comprehensive biosafety risk assessment on a continuous basis in order to cope with evolving risks in the laboratory setting. Furthermore, the healthcare workers in hospital or researchers in the laboratories may be unaware of the possibility of aerosols and droplets mediated infection in the laboratory during the process of centrifugation, vortexing, pipetting, and so on, or by SARS-CoV-2 infected individual during the process of breathing, coughing and sneezing and that aerosolized virus may travel up to 1-6 m. Therefore, aim of this review is to describe the importance of biosafety measures against SARS-CoV-2 that should be introduced in laboratories undertaking diagnosis/research on SARS-CoV-2/any mutant form of SARS-CoV-2 like omicron suspected samples.
The Essential Points Regarding Laboratory Biosafety to Prevent the Spread of SARS-CoV-2
Journal of Kermanshah University of Medical Sciences
A current biosafety and biosecurity crisis, SARS-CoV-2/COVID-19, threatens public health, making it crucial to assess and follow optimal laboratory conditions to prevent any contamination and spread of the lethal virus. Much medical staff have been lost to the COVID-19 pandemic. The dimensions of laboratory biosafety were examined in this study to reduce risks associated with COVID-19 treatment. In addition, this research primarily focuses on assessing laboratory biosafety regarding emerging coronaviruses. This research will determine which aspects need to be addressed to address the risks and implement them in the correct order and at the right time to be as educational as possible.
medRxiv, 2020
Background: Health Care Workers (HCWs) of diagnostic laboratory handling COVID positive samples are at risk and need to take protective measures. Many protective materials were not available when the pandemic reached India forcing laboratory managers to take innovative measures to protect the laboratory staffs. Methods: We made face shields from OHP sheets and substitute of biosafety cabinets from cardboard boxes fitted with hypochlorite spraying devices. Here we present if these two in-house developed safety devices when incorporated in standard operating procedure (SOP) of laboratory safety were effective in clinical biochemistry laboratory of dedicated COVID hospitals. Results: We assessed contamination of laboratory surfaces (n=6) and rate of SARS-nCov-2 positivity from their nasal and throat swab by RT-PCR among laboratory personnel (n=18) after 14 days of their use along with other routine safety devices like use of gloves, surgical masks, OT gowns etc. These HCWs were checked...
Journal of the National Comprehensive Cancer Network, 2020
The novel coronavirus, SARS-CoV-2, was first detected as a respiratory illness in December 2019 in Wuhan City, China. Since then, coronavirus disease 2019 (COVID-19) has impacted every aspect of our lives worldwide. In a time when terms such as social distancing and flattening the curve have become a part of our vernacular, it is essential that we understand what measures can be implemented to protect our patients and healthcare workers. Undoubtedly, healthcare providers have had to rapidly alter care delivery models while simultaneously acknowledging the crucial unknowns of how these changes may affect clinical outcomes. This special feature reviews strategies on how to mitigate transmission of COVID-19 in an effort to reduce morbidity and mortality associated with the disease for patients with cancer without infection, for patients with cancer with COVID-19 infection, and for the healthcare workers caring for them, while continuing to provide the best possible cancer care. [Editor...
Preventive Measures for COVID-19 Health Care Professionals
International Journal of Research in Pharmaceutical Sciences
WHO now acknowledges the COVID-19 (SARS-CoV-2) as a Public Health Emergency, which requires global attention. It has elevated the risk assessment of China, Regional Level and Global Level to Very High. It spreads when someone who has contracted the virus coughs out droplets of infected fluid. Most of these droplets are suspended and settle on various surfaces and objects nearby - such as desks, doors, Doorknobs, pens, tablets or phones etc. Anyone can contract COVID-19 virus by coming in direct contact with contaminated surfaces or objects – and then reaching out to their nose, eyes or mouth with those now-infected hands. If they are within a distance of one meter from an infected individual with or without symptoms, they can contract it by inspiring in the droplets coughed out or exhaled by COVID – 19 impacted individuals. To say, COVID-19 spreads the way the regular flu does. To curb and monitor the spread and contain the transmission of the disease a state control room has been e...
eLife, 2020
Previously, we showed that 3% (31/1032)of asymptomatic healthcare workers (HCWs) from a large teaching hospital in Cambridge, UK, tested positive for SARS-CoV-2 in April 2020. About 15% (26/169) HCWs with symptoms of coronavirus disease 2019 (COVID-19) also tested positive for SARS-CoV-2 (Rivett et al., 2020). Here, we show that the proportion of both asymptomatic and symptomatic HCWs testing positive for SARS-CoV-2 rapidly declined to near-zero between 25th April and 24th May 2020, corresponding to a decline in patient admissions with COVID-19 during the ongoing UK ‘lockdown’. These data demonstrate how infection prevention and control measures including staff testing may help prevent hospitals from becoming independent ‘hubs’ of SARS-CoV-2 transmission, and illustrate how, with appropriate precautions, organizations in other sectors may be able to resume on-site work safely.