10 Foods to Avoid Besides Lettuce as Cyclospora Outbreak Continues to Expand

Cyclospora outbreaks in the U.S. are often linked to fresh produce, especially imported items eaten raw. As health agencies track more illnesses this summer, the focus is not just on lettuce but on several other foods that have shown up in past investigations. This list covers 10 foods people are hearing about most as the outbreak picture continues to grow.

Basil

Fresh basil has come up before in Cyclospora investigations tied to restaurant meals and prepared foods. In past U.S. outbreak work, federal investigators identified basil as one ingredient of interest when people in multiple states reported similar symptoms.

Basil is a concern because it is often added raw after cooking, especially in pasta, pizza, and salads. That means there is no heat step to reduce risk before it reaches a plate in homes or restaurants.

For shoppers, the issue is not that every bunch of basil is unsafe. What is confirmed is that basil has appeared in prior traceback efforts, and officials typically look closely at fresh herbs when Cyclospora cases rise during warmer months.

Cilantro

Cilantro is one of the best-known foods linked to Cyclospora in the U.S. Federal health officials have previously connected outbreaks to cilantro imported from Mexico, including multistate investigations that affected hundreds of people.

The herb is widely used in salsa, tacos, rice bowls, and prepared deli foods sold nationwide. Because cilantro is usually eaten raw, it remains a repeated focus when investigators compare what sick people ate in the 14 days before symptoms started.

Right now, not every outbreak is being tied to cilantro. Still, its history in confirmed U.S. Cyclospora cases means it stays high on the watch list when illnesses begin expanding across several states.

Raspberries

Fresh raspberries have a long history in Cyclospora reporting in North America, including a major 1996 outbreak that sickened more than 1,400 people in the U.S. and Canada. That event remains one of the best-known examples tied to imported produce.

Raspberries matter in current coverage because Cyclospora contamination is hard to spot by sight or smell. The berries are delicate, often eaten raw, and can move quickly through grocery supply chains during peak summer demand.

There is no blanket warning against all raspberries at this point. The practical takeaway is that berries remain part of the broader produce category investigators review whenever seasonal Cyclospora cases begin climbing.

Snow Peas

Snow peas have also appeared in prior Cyclospora outbreak investigations in the United States. Public health agencies have looked at them when ill people reported eating raw vegetable mixes, restaurant stir-fry toppings, or prepared cold dishes sold in multiple locations.

Unlike fully cooked vegetables, snow peas are often served lightly cooked or raw. That matters because Cyclospora is typically associated with foods that bypass a full kill step before being packaged, plated, or added to grab-and-go meals.

What is known is that snow peas are not the main food named in every outbreak. What is not yet known in expanding case counts is whether any single produce item will emerge as the dominant source.

Green Onions

Green onions have been examined in earlier foodborne illness investigations that included Cyclospora among possible concerns. They are common in salads, potato dishes, noodle bowls, and refrigerated deli items sold ready to eat.

Their risk profile is similar to other fresh garnishes because they are frequently chopped and added at the end of preparation. In large kitchens, one contaminated ingredient can also spread across many servings made on the same day.

Officials have not said green onions are driving the current outbreak. Even so, they remain relevant because traceback work often starts with ingredients that appear in many meals but are not always noticed by diners.

Tomatoes

Tomatoes show up often in outbreak interviews because they are one of the most common raw produce ingredients in the U.S. From sandwiches to salsa, they are widely consumed and can overlap with other suspect ingredients in the same meal.

That makes tomatoes difficult to rule in or rule out early in an investigation. A single restaurant entrée may include tomatoes, cilantro, onions, and lettuce, which means case investigators have to compare many reports before identifying a stronger pattern.

For consumers, the key point is that tomatoes are part of the broader fresh-produce picture. They have not been universally identified as the cause, but they are frequently reviewed when Cyclospora cases expand.

Salad Mixes

Bagged salad mixes are a major focus anytime Cyclospora is under review because they combine several raw ingredients in one package. A single mix can include romaine, spinach, cabbage, carrots, and herbs distributed across many states within days.

The concern goes beyond lettuce alone. If a mixed salad product contains another implicated ingredient, such as fresh herbs, it can complicate tracebacks and make it harder for health officials to isolate one source quickly.

No full nationwide list of affected salad mixes has been released in every investigation. Still, ready-to-eat produce blends remain one of the most closely watched categories during summer foodborne illness tracking.

Fruit Trays

Precut fruit trays can enter the discussion when Cyclospora cases involve grocery deli departments or catered events. These products are handled extensively, and they are typically eaten cold, which means there is no cooking step before consumption.

Fruit trays also combine multiple items, including berries, melon, and pineapple, from different supply streams. That matters in outbreak work because investigators must sort out whether the issue is one fruit, shared handling, or a broader distribution point.

At this stage, fruit trays are more of a category to watch than a confirmed universal source. Their relevance comes from how often they appear at parties, offices, and retail counters during the summer season.

Vegetable Trays

Vegetable trays are another prepared-food category that can become important in Cyclospora investigations. Carrots, broccoli, celery, peppers, and herbs may be cut and packed together, then sold in supermarkets, convenience stores, or event platters.

The trays can also include dip cups and garnish items, creating more handling steps before sale. In traceback reviews, that kind of mixed preparation can slow efforts to pinpoint whether the contamination came from one ingredient or one facility.

Nothing publicly confirmed says all vegetable trays are implicated in the current outbreak. What is clear is that prepared raw produce remains central whenever public health teams investigate expanding Cyclospora case counts.

Party Salads

Party salads, including pasta salad, taco salad, and deli-made side salads, are often reviewed in Cyclospora investigations because they mix many uncooked ingredients. One tray may contain cilantro, green onions, tomatoes, lettuce, and cheese served to dozens of people.

That overlap is important when officials compare exposure histories from different states. A person may remember eating pasta salad on June 15, for example, but not recall every herb or garnish mixed into it at a picnic or store deli.

For residents and travelers, the practical reality is simple: health investigators usually start with complex prepared foods and work backward to the produce ingredients. As the current outbreak expands, these mixed dishes are likely to remain part of that review.