Food Safety for Pregnant Women. When pregnant, a womanâs immune system is reduced. This places her and her unborn baby at increased risk of contracting the bacteria, viruses, and parasites that cause foodborne illness. Foodborne illnesses can be worse during pregnancy and may lead to miscarriage or premature delivery.
The United States has been the world's largest economy for at least a century. One third of the world's millionaires and 40% of the worlds billionaires live in the United States, making it the wealthiest nation in the world.
As of 2015, Nigeria is the world's 20th largest economy, worth more than $500 billion and $1 trillion in terms of nominal GDP and purchasing power parity respectively. It overtook South Africa to become Africa's largest economy in 2014. The 2013 debt-to-GDP ratio was 11 percent.