It was the worst outbreak of violence between white right-wingers and security forces.

The worst outbreak, in 1878, reduced the population by nearly 75% as many people died or fled the city permanently.

It is the worst outbreak ever recorded in the country, and possibly the world.

For California, it is the worst outbreak in at least a decade, some say the worst ever.

On 18 August the worst outbreak was under control and the emergency could be declared over.

The diplomats called it one of the worst such outbreaks on record.

The 1952 epidemic was the worst outbreak in the nation's history.

There is a very bad outbreak there at the moment.

The worst outbreak was in 1680, and left many houses without occupants.

It is the country's worst outbreak of cholera in 15 years.