It's not good for kids (or anyone) to live with a lot of mould and especially in cold and humid conditions. Long term respiratory issues. But unlikely to cause sudden illness like you describe.
Yeah - the vomiting is just kids doing kid stuff. Anecdotally, there was a whole lot of puking going on over the winter break.
@NotThamesWater started
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It's not good for kids (or anyone) to live with a lot of mould and especially in cold and humid conditions. Long term respiratory issues. But unlikely to cause sudden illness like you describe.