Processed Foods. Processed foods tend to have a lot of sodium, and people with hypothyroidism should avoid sodium, Frechman says. Having an underactive thyroid increases a person's risk for high blood pressure, and too much sodium further increases this risk.
Yellow fever is caused by the yellow fever virus (YFV), also called Flavivirus. The virus is transmitted by female mosquitos, who pick it up from monkeys or other humans, then delivers it to a new human when they bite and suck blood. The disease cannot be spread from person to person. Mosquitoes breed in tropical rainforests, humid and semi-humid environments, and around bodies of still water.
Fecal-oral transmission route. The bacteria that cause typhoid fever spread through contaminated food or water and occasionally through direct contact with someone who is infected. In developing nations, where typhoid fever is endemic, most cases result from contaminated drinking water and poor sanitation. The majority of people in industrialized countries pick up typhoid bacteria while traveling and spread it to others through the fecal-oral route.