41.   Salmonella bacteria, a potentially serious disease, is most serious in infants, young children, the elderly or anyone with a weakened immune system.

42.   So should all children, adolescents and young adults who have not had chicken pox, because the disease can be more serious in older people.

43.   So you think rock music has gotten a little too serious in the last few years?

44.   Talcott is reflective and morally serious in a way not unlike Carter.

45.   The British and Irish governments appear to be moving in sync to reassure the public that they are serious in their resolve.

46.   The danger is particularly serious in the squatter villages that have sprung up on vacant state-owned land to accommodate the influx from rural areas.

47.   The disease is most serious in puppies, old dogs and those with weakened immune systems.

48.   The danger is especially serious in areas where subdivisions meet wild countryside.

49.   The discussions have been most serious in Argentina, which has already held informal talks about the possibility with the Treasury and the Federal Reserve.

50.   The feuding over adjectives has been deadly serious in recent days.