41.   The infection spread to her chest.

42.   The metal and machine industries benefited most directly, while the stimulus spread to the textile and other light industries.

43.   The nasal discharge and the discharge from the abscesses is highly infectious and this is how strangles is spread to other horses.

44.   The only way you survive is to spread to another area.

45.   The patients have been isolated to keep the disease from spreading to the rest of the population.

46.   The rioting quickly spread to neighbouring areas.

47.   There is now a real risk that nuclear weapons will spread to several other countries.

48.   They soon spread to a variety of habitats, but in the Palaeozoic they were conspicuously abundant in relatively shallow environments.