BBC News Reality Check

Some African nations have just begun vaccination programmes, but many have yet to start.

Social-media posts - some described as "scare stories" - are based on misunderstandings, experts say.

Frozen wind turbines are being blamed for power failures - but problems with fossils fuels are a bigger issue.

What are the tests for coronavirus, who are they for, and how do they work?

The removal of news sites has led to concerns about the spread of disinformation.

In recent years there's been increasing use of a law which bans speaking out against the government.

President Biden has made a series of claims during his first four weeks - are they right?

South Africa has started Covid-19 vaccinations after a delay to the original planned rollout.

The government says freight volumes to the EU are back to normal. What do the figures show?

Israel is leading the world in rolling out vaccines, but the Palestinian territories have only just started.

Indian ministers have been promoting new microblogging site Koo following disagreements with Twitter.

The chancellor says that different ways of calculating GDP makes the UK look bad.

Donald Trump's lawyers are disputing his impeachment on several fronts - are they right?

A lack of specialised testing is making it difficult to track new coronavirus mutations in Africa.

The new strain was reported in South Africa on 18 December.