lasts

More than 800,000 immigrants from 16 countries currently hold the legal status, which lasts for up to 18 months, before the government must reevaluate whether to renew it with end dates varying by country.

That burst of axions, however, lasts a mere 10 seconds after the neutron star forms -- after that, the production rate drops dramatically -- though hours before the outer layers of the star explode.

The infection can clear up on its own and lasts between 14 and 21 days, but in some cases has been fatal, particularly for vulnerable groups including small children.

"I think the question is whether these innovations will continue or whether they will just last as long as that particular team lasts," he says.

Family friends recommended Kendamil, which costs £15 a tin and lasts his son about a week.