Given the task definition and input, reply with output. Generate an explanation for the given claim using the provided supporting material from the paragraph. Please consider the following points while generating an output. 1) The claim will always have supporting proof in the paragraph, and the paragraph will have a clear point of view supporting the claim. 2) There can be instances where direct correlation to the claim is not available. Make use of the sentences in the paragraph to provide a corresponding output supporting the claim. 3) The explanation should be at least one and at most twelve sentences long.

Paragraph: "The measures which have just been taken, the earliest we'd expect to see an effect on the growth of the epidemic is about two to three weeks time," said Professor Neil Ferguson, an expert on the spread of infectious diseases at Imperial College London. "I think we're still behind the epidemic seen in other European countries," he told BBC radio. "I overall think we've got the timing about right." "Certainly there wasn't any time to lose," he said. Claim: Top epidemiologist: UK had no time to lose on coronavirus battle.
One of Britain's top epidemiologists said on Tuesday that the British government got the timing of its coronavirus strategy about right but that there was no time to lose on moving to more stringent measures.