A plague on both your houses - Ian Porter

It's May 1918. The Great War is finally coming to a conclusion. The German Spring Offensive appears to be winning the war before the recent arrival into Europe of American troops can have any military effect. But the German Home Front is struggling. The Allied blockade of foodstuffs; a poor government and a potato blight have left the German people hungry and angry. In comparison, the introduction of rationing proves a great boon to morale in Britain. And just in time too. Because the American troops have brought with them something far more deadly than their own firepower. A deadly mutated flu virus.In the East End of London, Mr & Mrs Nash have not bought into the war. He's a tough ex-villain who hides conscientious objectors from the authorities. But the government's net appears to be drawing in on him. She helps Sylvia Pankhurst run a nursery, restaurant cum soup kitchen and a toy factory, as well as badger officialdom to give more help to people. And as an ex-Suffragette she knows how to both use and circumvent the law when it suits her.
In the East End of Berlin, a nurse, a farmer, a black marketer, a soldier home on leave and a rich woman with a chauffeuse are all woven together as the Germany Home Front starts to collapse into starvation, retribution and rioting. Germany can't fight the British, the flu and themselves.
It's a fast paced page-turner, full of action and personal relationships, as the two stories and the people of two countries come together to solve a huge problem the war and the flu has created.