Everything we know so far about the Clapham alkali attack, and St John Ambulance explains what to do if you ever witness, or are the victim of, a chemical attack.

A study suggests a malaria vaccine is highly effective in young children.

The secret to why some dogs live longer than others.

Also in this episode:

• Amazon and Meta stocks surge after results, while Apple drops
• Climate campaigner Greta Thunberg speaks out about her trial 
• Bedbugs scare at government office building 
• The most romantic love songs ranked, according to Spotify playlists 

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