He said he expects additional reports of illnesses and new "sub-recalls" in coming weeks and days.
Wright County Egg and Hillandale Farms issued the egg recall earlier this month after receiving reports that salmonella had sickened nearly 2,000 people.
Meanwhile, two new brands of eggs were added Thursday to the recall tied to the two Iowa farms.
Wright County Egg said it has found salmonella in the Cardenas Market brand and is beginning a voluntary recall. Affected cartons have the plant number 1026 on the side and Julian (packaged) dates between 136 and 228, CBS News reported Thursday.
And Trafficanda Egg Ranch reported salmonella in some of its eggs from Wright County. Affected plant numbers are 1026, 1413, 1720, 1942 and 1946, with Julian dates between 136 and 229, the news network said.
At least 550 million eggs have been recalled so far, according to federal officials. Experts stress that any shell eggs that have been recalled from store shelves are being destroyed.
To find out if any eggs in your fridge might be affected, check the carton for the "Sell By" date and the two numbers below it, federal health officials say, to see if your eggs are involved in the recall. One number is the plant number, and the other is the packaged date, or Julian date, showing what day of the year the eggs were packaged. For example, Jan. 1 is 001 and Dec. 31 is 365. The U.S. Food and Drug Administration has a list of what numbered designations are included in the recall.
In healthy people, salmonella can cause fever, abdominal cramps and diarrhea and usually lasts four to seven days. However, contamination can cause serious and sometimes fatal infections in young children, frail or elderly people, and others with weakened immun
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