First Minister, I think there is concern at the latest statistics, and, obviously, we'll need to have a look at that—Welsh Government will need to have a close look at that. One aspect that's very concerning to my constituents is lost school time. In secondary schools. for example, whole year groups continue to self-isolate when one of the group has COVID-19, and learning at home does not make up for that lost time, and it is the most vulnerable who suffer the most. Practice seems to be different from one school and one local authority to another. So, First Minister, will Welsh Government work with local authorities, schools and unions to seek to reduce that lost school time, for example by looking at safety in schools, limiting contact between pupils so that fewer have to isolate when one has the virus, and enhanced testing at schools, to limit the damage to our children's education and the nation's future?