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Wales jab success, Eurovision and living with your parents
How to vaccinate a country quickly, plus the UK’s singing contest woes.

Comparing death counts, Lock Down drinking and Long Covid
Is the UK’s Covid-19 death count among the worst in the world?

Brexit exports, cladding and are 1 in 5 disabled?
Are exports to the EU down since Brexit? Plus removing flammable building cladding.

Teachers, Test & Trace and Butterflies
Are teachers more at risk from Covid-19?

Deaths at ÃÛÑ¿´«Ã½, Supermarket Infections and the Cobra Effect
Where are people catching Covid-19?

Will the vaccine bring back normal life? GDP and Fishing
If we vaccinate the top four priority groups by February, how much will things change?

How effective is one dose of the vaccine?
Is the first dose of the Pfizer Covid-19 vaccine 52% or 90% effective?

Spreadsheet snafu, ‘Long Covid’ quantified, and the birth of probability
Missing coronavirus case data, long-term symptoms, and a big mathematical moment.

'Record' Covid cases, Trump on the death count, and ant pheromones
Case counts in perspective, a suspect stat from the US, and life lessons from insects.

Covid curve queried, false positives, and the Queen’s head
How fast are coronavirus cases doubling? Plus testing confusion and a royal face-off.