Houston Chronicle

Protect yourself from food-borne illnesses

- DR. MICHAEL ROIZEN Contact Dr. Roizen at sharecare.com.

Q: It seems like there have been a lot of food recalls and alerts for meats and vegetables lately. Is there any way to avoid these risks?

Janine R., Largo, Fla.

A: Contaminat­ion of meats, seafood, dairy products and produce with bacteria, viruses and fungi that cause mild to severe illness is something food growers, manufactur­es, sellers, government agencies from the U.S. Department of Agricultur­e to the Centers for Disease Control and Prevention are working to avoid. But it’s not always a successful battle against the clever adaptabili­ty and persistenc­e of those microbes.

The most common sources of food-borne illness are norovirus, salmonella, clostridiu­m perfringen­s, campylobac­ter and staph. Less common but more likely to cause hospitaliz­ation are botulism, listeria, E. coli and vibro. Listeria-related recalls in November of this year included fresh onions, frozen cauliflowe­r and cooked shrimp and chicken. You can stay current with such notices at cdc.gov/foodsafety. You can also take steps to protect yourself.

1. When preparing and eating meats and poultry:

• Never wash raw poultry or meat before cooking.

• Use a meat thermomete­r to determine when the internal temperatur­e is at a safe level. Info is at foodsafety.gov/food-safetychar­ts.

• Store leftovers at 40 degrees or colder within two hours after preparatio­n.

2. When preparing fruits and vegetables:

• Keep them safe from cross-contaminat­ion from animal products.

• For leafy greens: Discard outer and damaged leaves; rinse greens under running water and gently rub surfaces. Wash in a salad spinner three times (even triple-washed packaged greens).

• Store produce in a fridge that’s 40 degrees or below.

• Before peeling, scrub the rind or skin with a clean produce brush under running water.

3. When eating dairy products: Do not eat unpasteuri­zed products. 4. When eating eggs:

• In recipes that call for raw eggs, use pasteurize­d eggs.

• Cook eggs until whites and yolks are firm.

• Don’t eat raw dough or batter.

5. When eating seafood and shellfish:

• Cook seafood to 145 degrees, and heat leftover seafood to 165 degrees.

• Do not eat raw or undercooke­d fish or shellfish.

Q: My husband and I are considerin­g using in vitro fertilizat­ion to become pregnant, but that story about the couples who gave birth to each other’s baby is horrifying. Is there any way to protect against that sort of mix-up?

Charna L., San Francisco

A: In 2017, 498 fertility clinics in the United States performed assisted reproducti­ve technology procedures and 448 (90 percent) provided data to the Centers for Disease Control and Prevention. (More on that later.) In vitro fertilizat­ion was the most common type of assisted reproducti­ve technology used — it accounted for 99 percent.

One CDC review found that 55 percent of one-time IVF procedures resulted in a live birth; two IVF cycles were successful 65 percent of the time. And while recognized mix-ups make headlines — and are inexcusabl­e — they’re not common.

However, there are steps you can take to make sure your facility is using the very strictest and most effective ART technologi­es and management techniques. Remember, no authority or agency tracks or polices embryo mix-ups and freezer meltdowns, and there is no consolidat­ed oversight of IVF or similar procedures.

1. Not all clinics report their procedures and outcomes to the CDC annually — and you have to wonder why one wouldn’t do that. So, ask to see your clinic’s latest report to the CDC. Not up to date? Don’t use that facility.

2. Ask if they’re members of the Society for Assisted Reproducti­ve Technology. That organizati­on establishe­s ethical guidelines and programs for laboratory accreditat­ion. Not a member? Another red flag.

3. Search FDA.gov to see if there have been recorded violations or other concerning statistics for the facility.

4. Ask the facility specifical­ly how the genetic material is organized and what they do to avoid errors. For example, more than one IVF container should never be open at once in the same room. And two people should supervise all handling of IVF products every time. Barcode matching procedures are also an important safeguard.

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