Most of the virologists suggest to work under biosafety cabinet -II (BSC-II) lab to avoid any unexpected cross contamination. Some expert suggest to work in BSC-III laboratories with such virus samples.
I wonder about the actual difference among them and how the cross contamination controlled by these BSC-II or BSC-III lab facilities?
Is it possible to avoid any contaminaiton by using extra PPE while working in the lab?
https://www.cameraitacina.com/en/news/coronavirus-ncov-2019-recommendations-and-advices
Personal protective measures for those who have recently (in the last 14 days) visited COVID ‑ 19 distribution regions
Follow the recommendations above (“Personal Protective Measures for All”)
If you feel unwell, stay home until you recover, even if you have mild symptoms of the disease, such as a headache, low-grade fever (37.3 ° C or higher), or a slight runny nose. If you ask someone to bring you groceries and go to the store for you, use a mask so as not to infect a person who comes to you.
Why is this needed? By refraining from contact with others and not visiting medical institutions, you help these institutions to work more efficiently and protect yourself and others from possible infection with COVID-19 or other viral infections.
If you have fever, coughing, or difficulty breathing, do not delay seeking medical attention, as these symptoms may be caused by a respiratory infection or other serious illness. Contact your healthcare provider immediately and let your healthcare professional know of all recent trips or contacts with travelers.
Why is this needed? Timely seeking medical help will allow medical specialists to promptly refer you to a suitable medical institution. In addition, it will help prevent the probable spread of COVID-19 and other viral infections.
https://www.who.int/ru/emergencies/diseases/novel-coronavirus-2019/advice-for-public/q-a-coronaviruses
It is my personal view that when we are working with any infectious microorganism, it is highly imperative to employ personal protective measures to prevent the infection. I worked for over 45 years on infectious pathogens, and I always used face mask, apron, and gloves etc as protective measures.
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