Building on existing models on spacy

Hello,

This is a question regarding training models on SPACY3.x.

I couldn't find a good answer/solution on StackOverflow hence the query.

If I am using the existing model in spacy like the en model and want to add my own entities in the model and training it, let's say since I work in the biomedical domain, things like virus name, shape, length, temperature, temperature value, etc. I don't want to lose the entities tagged by Spacy like organization names, country, …

building languagetechnology spacy