diarrhoea

"Those with ongoing symptoms such as fever, vomiting or diarrhoea are now recommended to visit a hospital emergency room for assessment," Maria Rotzén Östlund, an infectious disease physician, told state broadcaster SVT.

Whilst generally well tolerated, there are risks of certain side effects — including nausea, constipation and diarrhoea.

Three-month-old Sana, the youngest baby on the ward, has malnutrition, acute diarrhoea and a cleft lip.

Environmental activists told HRW that community members in areas affected by the pollution were still complaining of headaches, coughing, diarrhoea, and other health issues that increased after the spill.

For many, the side effects - which can include feeling sick, vomiting, bloating, constipation and diarrhoea - are manageable and tend to go away in time.