Johnson is announcing new visas to fast-track foreign doctors and nurses into the country after Brexit, while Corbyn is unveiling a package of measures to improve working conditions for women, including a plan to reduce the gender pay gap and grant extra maternity pay, Bloomberg reported.
Both parties will hope the conversation moves to discuss their policies after they were hit by a slew of negative headlines.
The Conservatives this week had one minister quit and another made insensitive comments about the victims of a deadly fire. While Corbyn on Thursday faced criticism from a Jewish newspaper and a former Labour lawmaker.