Mystery Child Illness: Cause Found

Question 1

The story

Answer 1

Hepatitis. A recent mysterious outbreak of the liver disease has seriously affected over a thousand young children from 35 countries across the world. Until now, nobody knew why.

But scientists in the UK say the likely cause is two common viruses which came back after Covid lockdowns ended.

Question 2

get to the bottom of

Answer 2

discover the truth about a situation

DNA evidence helped police get to the bottom of the case.
Who stole my pen? I need to get to the bottom of this.

Question 3

culprit

Answer 3

The person who committed crime & detectives looking for culprit.

the cause of something bad

Scientists say climate change is the culprit when it comes to heatwaves.
After the robbery, detectives searched for the culprit.

Question 4

constellation

Answer 4

Preprints: Academic scientific research/paper

a group of related things

There is a constellation of reasons for global price rises.
Digital TV offers a constellation of viewing options.