A Polio-Free U.S. Thanks to Vaccine Efforts. ... Polio has been eliminated from the United States thanks to widespread polio vaccination in this country. This means that there is no year-round transmission of polio virus in the United States. Since 1979, no cases of polio have originated in the United States.
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-This research attempts to show that exercising keeps you fit and helps you avoid a number of disorders, and eating well helps you avoid a variety of harmful diseases by providing you with an extra boost of energy with the right meal.
is this alright please inform me
I think it's called infectious agent or something close to that.
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complex is the correct answer.
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