Some are viruses with global pandemic potential - like Covid - others infectious illnesses with no treatments.

Public Health Wales (PHW) said TB was a "serious public health concern".

There have been more US cases of measles in the first three months of 2025, than all of 2024.

Play centre owner: Plan for children's 'chickenpox party' is 'selfish'.

The story of a coach driver pictured at the heart of a Covid controversy.

The child who died was unvaccinated during an outbreak that has infected more than 120 people.

Texas authorities report a surge in cases since January in communities with low vaccination rates.

Melonie Bray used to go on adventures in the mountains, but now she cannot leave her house alone.