London has made real progress in reducing new HIV diagnosis.

And that's because we know what works.

Be sure, know the four ways to prevent HIV.

One, test regularly and know your status.

Two, condoms can prevent HIV and other sexually transmitted infections.

Three, prep is a pill which can prevent HIV.

Four, undetectable.

Also known as U equals U.

Means people living with HIV on treatment cannot pass it on.

Be sure, know the four.

Visit duetlundan.org.

This is an episode of not just the tutors with Professor Susana Lipskin.

If you'd get into, enjoy.

There were many great families in Tudor, England.

But among them, none except perhaps the Howard's rivaled the Dudley's

for their dramatic seesawing between high favour and low disgrace.

Every Tudor monarch made their name with a Dudley by their side

or by crushing one beneath their feet.

Says today's guest.

Think of Edmund Dudley, who enriched Henry VII and was executed by Henry

VIII John Dudley, Duke of Northumberland, who helped Edward VI rule,

put Lady Jane Grey on the throne and died a traitor's death under Mary

...