Normal impacts
Research into psychological impacts of health anxiety, quarantine and isolation have found a range of short-term emotional changes are normal, including confusion, anger, anxiety and depression.
Some short-term behaviour change is also normal. This includes insomnia, exhaustion, irritability, or avoidance, e.g. avoiding crowded places.
Some long-term behaviour changes can also be normal, e.g. changes in hygiene practices.
Concerning impacts
While most children will bounce back and recover in their own time, a pandemic can trigger Acute Stress Disorder (ASD) or Post-Traumatic Stress Disorder (PTSD) symptoms in some people.
Trauma is a response to a deeply distressing or disturbing event that overwhelms your ability cope. A trauma typically involves intense feelings of fear, helplessness or horror. A trauma can include the threat of serious harm, or death to themselves, or another person, e.g. fear for an immune-compromised sibling or witnessing the suffering of others on the news.