Winstonm, on 2020-March-13, 07:00, said:
Grammatically, I think you are wrong. The phrase "possibly even worse" is separated by dashes, which act the same as commas, setting that phrase aside from the main sentence. The understanding of the sentence is: The UK should invest in better understanding of diseases in wildlife populations, and the routes to these becoming human diseases to drastically reduce the risk of future global pandemics like Covid-19, and some possibly worse.
"future global pandemics like Covid-19" is accurate. The sentence structure could be improved, but it is accurate and grammatically correct IMO.
Speaking as one who learned English in the US, I agree with you.
I notice that the people who disagree seem to be Brits.
Perhaps it's a difference in British vs. American English? Since living in Switzerland, I've noticed that there's a difference, not just in vocabulary, but also in grammar. I can't think of specific examples, but there are things that BBC has said that I thought were phrased in a strange way.