A multi-state outbreak of Listeria infection linked to prepared pasta meals is currently under investigation by the Centers for Disease Control and Prevention (CDC), . As of today, seven individuals across seven different states have become ill.
Understanding Listeria and the Current Outbreak
Listeria monocytogenes is a bacterium that can cause a serious infection called listeriosis. While most healthy people experience only short-term symptoms like high fever, severe headache, stiffness, nausea, abdominal pain, and diarrhea, listeriosis can be life-threatening for certain populations. These include pregnant people, newborns, older adults, and individuals with weakened immune systems.
The CDC investigation is focused on identifying the specific prepared pasta meals responsible for the outbreak. Currently, the source of the contamination remains under investigation, and no specific products have been recalled. The CDC is working to determine the point of contamination in the food supply chain.
Symptoms and Risk Factors
Symptoms of listeriosis can vary depending on the person infected. In pregnant people, a Listeria infection can lead to miscarriage, stillbirth, premature delivery, or life-threatening infection of the newborn. For those outside of these high-risk groups, symptoms typically develop within a few days to two months after eating contaminated food.
Individuals experiencing symptoms consistent with listeriosis should seek medical attention promptly. Diagnosis typically involves laboratory testing to identify the presence of the bacteria.
Broader Respiratory Illness Trends
While the Listeria outbreak is a specific concern, it’s important to note that other respiratory illnesses are also circulating. According to the CDC, as of , several viruses and bacteria beyond COVID-19, influenza, and RSV are contributing to respiratory illness. These include common human coronaviruses, which typically cause mild upper respiratory infections but can lead to pneumonia or bronchitis, particularly in vulnerable populations like those with cardiopulmonary disease, weakened immune systems, infants, and older adults.
The CDC actively tracks the severity and spread of these respiratory illnesses using data from emergency departments, hospitals, and laboratories. This surveillance helps identify trends and guide public health prevention efforts.
Recent Foodborne Illness Investigations
The current Listeria outbreak isn’t the only foodborne illness under investigation. In , the Food and Drug Administration (FDA) initiated an investigation into a Salmonella outbreak linked to eggs. Details of that investigation are ongoing, highlighting the constant vigilance required to ensure food safety.
Norovirus Surge
Adding to the landscape of circulating illnesses, health professionals are also observing a surge in norovirus, often referred to as “winter vomiting disease.” This highly contagious virus spreads through contaminated food and water, causing symptoms like nausea, vomiting, and diarrhea. The CDC is monitoring this increase in cases.
Preventing Foodborne Illness
The CDC emphasizes several key practices to prevent foodborne illnesses, including listeriosis. These include:
- Clean: Wash hands, cutting boards, and utensils thoroughly after contact with raw meat, poultry, seafood, or eggs.
- Separate: Keep raw meats, poultry, and seafood separate from ready-to-eat foods.
- Cook: Cook foods to safe internal temperatures.
- Refrigerate: Refrigerate perishable foods promptly.
For individuals at higher risk of severe illness from Listeria, the CDC recommends avoiding certain foods, such as unpasteurized milk and soft cheeses, hot dogs and deli meats (unless reheated until steaming hot), and refrigerated smoked seafood.
Staying Informed
The CDC provides ongoing updates on outbreaks and public health concerns. For the latest information on the Listeria outbreak, as well as other current outbreaks, visit the CDC’s Outbreak List. Information on respiratory illnesses can be found on the CDC’s Respiratory Illnesses page. The FDA website also provides updates on foodborne illness investigations.
Public health officials continue to investigate the source of the Listeria outbreak and will provide further guidance as it becomes available. It is crucial for individuals experiencing symptoms of listeriosis, particularly those in high-risk groups, to seek medical attention promptly.
