Re: [Histonet] Formalin fixation for COVID-19 positive tissues .....

2020-04-21 Thread E. Wayne Johnson via Histonet
Where aldehydes are used for disinfection we consider 30 minutes contact time for difficult viruses like African Swine Fever (ASF) virus to be adequate.  Coronaviruses like PEDv TGE IBV and the SARS virus are much easier to inactivate than ASF virus. I'd consider the SARS virus to be similar to

Re: [Histonet] Formalin fixation for COVID-19 positive tissues .....

2020-04-20 Thread Tony Henwood (SCHN) via Histonet
Hi Richard, It will depend on the size of the tissue and the source. Lung tissue is the major concern. Other tissues not affected as much (based on the burgeoning literature on Covid-19). Routine fixation time are applicable, remembering that the alcohols and heated wax will also inactivate the