Listeria infection (listeriosis) in pregnancy is rare in Australia, with only around 10% of the generally low total cases occurring in pregnant women, but it's a serious risk due to severe outcomes like miscarriage, stillbirth, or severe illness in the baby, leading to strict food safety advice for expectant mothers. Pregnant women are highly vulnerable because hormonal changes weaken their immune system, making infection more likely and potentially devastating, even if the mother shows mild or no symptoms.
Every year in the United States, about 1 in 25,000 pregnant women are infected with Listeria. Listeria can spread to your baby during pregnancy cause harm, even if you do not feel very sick. Sadly, 1 in 4 pregnant women who get this illness lose their pregnancy or their baby shortly after birth.
Listeriosis during pregnancy can also increase the chance for serious health problems after birth. Newborn babies infected with Listeria can develop either early-onset or late-onset listeriosis. Early onset listeriosis develops 1-2 days after birth, and the baby often has signs of a serious bacterial infection.
CDC estimates that listeriosis is the third leading cause of death from foodborne illness with about 172 deaths per year. Nearly everyone with listeriosis is hospitalized. The case-fatality rate is about 20%. Nearly 25% of pregnancy-associated cases result in fetal loss or death of the newborn.
Neonatal Listeriosis. LM typically transmits from the mother to the fetus through the placenta, with transmission most commonly occurring during the third trimester when the placenta is more susceptible to infection.
If you're pregnant, you may also have a stomach ache or notice your baby moving less than usual. Babies with listeriosis may also be irritable and feed less than usual.
Also on the list of foods to avoid during pregnancy? Unwashed vegetables, such as lettuce, salads and raw sprouts. According to the FDA, these pose a higher risk of food illness for pregnant people, as they can harbor bacteria such as salmonella, listeria and E. coli.
Invasive illness
"Invasive" means bacteria have spread beyond the intestines (gut). Invasive listeriosis happens when Listeria spreads beyond the intestines. Symptoms of invasive illness usually start within 2 weeks after eating food contaminated with Listeria.
Chromosome conditions
If your baby inherits a chromosome condition, they'll not be able to develop properly. This causes a miscarriage. It's not possible to tell which parent passed on the chromosome condition. Chromosome conditions are thought to be the most common cause of an early miscarriage.
The bacterium is then able to cross the barrier between the blood vessels of the brain (blood-brain barrier) or cross the placenta to disseminate to the fetus in pregnant women.
Findings revealed that the incidence of listeriosis in the Australian population is approximately three cases per million. Listeriosis is generally only dangerous to high-risk populations such as pregnant women, unborn or newborn babies, elderly or individuals with compromised immune systems.
The antimicrobial regimen of choice for treatment of listeriosis is high-dose intravenous ampicillin (at least 6 g/day) for nonallergic patients for at least 14 days 14.
The skin of rockmelon has a net-like texture with grooves, making it difficult to clean. Everybody is at risk of foodborne illness; however Listeria and Salmonella may cause very serious illnesses in vulnerable groups such as pregnant women, babies, the elderly and people with reduced immunity.
Most meats are safe to eat during pregnancy (as long as they are cooked properly). However, deli or lunch meats are usually recommended to avoid. Deli or lunch meats have the potential to be a source of listeria. A listeria infection poses serious risks for women and their babies.
Listeria may not infect many people each year, but it's important to be aware of it. Pregnant women (and their unborn babies), older adults and people with weakened immune systems are at higher risk of becoming ill and likely to experience severe symptoms.
Your chance of miscarriage is highest when you first find out you're pregnant — around week 3 or 4. During weeks 3 and 4 of pregnancy, the miscarriage rate is roughly 25% to 33% of all pregnancies. After week 4, the rate drops to 15% to 20% between weeks 5 and 6.
There is no evidence of reduction in the risk of miscarriage in women prescribed bed rest. HCG administration as an alternative care for threatened miscarriage was more effective than bed rest in the Harrison study but this benefit is not confirmed when compared with placebo.
Caffeinated Beverages. In addition to milk and alcohol, pregnant women are advised to limit their caffeinated beverages intake, such as coffee, chocolate, and tea. Consuming caffeine in excess can disrupt fetal development and may even lead to miscarriage.
Healthcare providers diagnose Listeria infections with a blood culture. This is where a lab tries to get bacteria to grow from a sample of your blood. After birth, they might also test the placenta.
Healthy people rarely become very ill from listeria infection. But the disease can be fatal to unborn babies, newborns and people with weakened immune systems. Prompt antibiotic treatment can help curb the effects of listeria infection.
Certain nutrients, such as vitamins A, C, and E, folic acid tablets, omega-3 fatty acids, and antioxidants, are particularly beneficial for promoting healthy skin development and fair complexion for the baby during pregnancy.
Avoid: Packaged salads, unless you wash them first, ready prepared dressed salads like coleslaw or potato salad. Cooked-chilled foods can carry the risk of listeria. You can eat: Cooked-chilled foods that have been thoroughly heated all the way through. Avoid: Unheated cooked-chilled foods.
Juices that are fresh-squeezed and sold by the glass, such as at farmer's markets, at roadside stands, or in some juice bars, may not be pasteurized, or otherwise treated to ensure their safety. Warning labels are not required on these products. Pregnant women and young children should avoid these juices.
The estimated incidence of pregnancy related Listeriosis is 3–4 cases per 100,000 births. Maternal infection within the first trimester of pregnancy has an associated risk of miscarriage estimated at 65%, while infection in the 2nd or 3rd trimester has an associated risk of fetal demise estimated at 26%.
Quick Answer. Yes, you can eat at Subway during pregnancy—but how you order matters significantly. The main concern with Subway and similar sandwich chains is deli meat, which can harbour Listeria monocytogenes, a bacteria particularly dangerous during pregnancy.