The U.S. Food and Drug Administration (FDA) is expanding its Salmonella investigation to include cilantro, jalapeno peppers, and Serrano peppers, in addition to tomatoes. The outbreak has so far sickened at least 943 people in 40 states and Washington, D.C.

The FDA is taking samples of all jalapenos and Serranos coming through the Mariposa Port of Entry and asking every vehicle to stop for inspection. The government interviewed dozens of victims with many reporting they ate fresh salsa before getting sick. The federal agency is also testing locally grown cilantro and peppers

- A ban on certain foods coming from Mexico into the United States will take effect Monday as health officials are turning their attention to new possible sources for the Salmonella infections that have, up until now, been blamed on tomatoes.

The San Diego Union Tribune reported that the Food and Drug Administration and the Center for Disease Control told them on a conference call that all the 1,700 samples of Florida and Mexican tomatoes tested were negative for the sickening bacteria

Canada reported Friday its first case of salmonella poisoning linked to the outbreak of the disease in the United States.

The Public Health Agency of Canada said a 33-year-old man from Ontario returning from the U.S. tested positive for the salmonella strain that has sickened 922 Americans in 40 U.S. states since April

More than 4,000 people in Denmark may be infected with salmonella in what may become the worst outbreak there in 15 years, health officials said Wednesday.

Urgent checks are being conducted to find the source of a salmonella outbreak that officials say may be caused by a food product distributed only in Denmark but no single source has yet been named

The U.S. Food and Drug Administration (FDA) is planning to widen its search in the salmonella outbreak investigation by including other produce items on its list of suspects.

The decision to include other fresh produce commonly consumed with tomatoes comes as the FDA is under growing pressure to step up efforts to trace the source of the contamination. The salmonella outbreak has sickened at least 869 people, including 107 who have been hospitalized, in 36 states and Washington, D.C