Which statement about Cronobacter is true?

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Cronobacter is a bacterium that can cause serious illness in infants, and its key behavior relevant here is its ability to survive in dry, low-moisture environments like powdered infant formula. Powdered formula is not sterile, and Cronobacter can persist in the powder, posing a risk to infants who consume it. This is why public health guidance focuses on safe preparation and handling of formula—reconstituting powder with water hot enough to help reduce bacterial presence, using the formula promptly, and discarding leftovers after feeding. The other statements don’t fit: Cronobacter is not a virus; heat can kill it with proper cooking/reconstitution; and it is not always harmless—infants can suffer severe infections from it.