Here's why and how it would be signed:
* BSL is a visual language. It relies on handshapes, movements, facial expressions, and body language to convey meaning. There isn't a one-to-one correspondence between spoken words and signs.
* "Pandemic" is a complex concept. It involves the idea of a disease spreading widely and affecting many people.
* BSL would use signs and concepts to describe the situation. The signing would likely involve a combination of signs like:
* "Disease"
* "Spread"
* "Widely"
* "Many people"
* "World"
The exact signs and their order would depend on the context and the signer's specific meaning.
If you're interested in learning more about BSL, there are many resources available online and in your local community.