Again, potatoes, when eaten in salads, are in a mildly raw form and have the tendency to transfer germs like Shigella, E. coli, etc. into your body. Proper cooking and care is the solution.
5. Cheese
Cheese can be mostly harmful for pregnant women since cheese contains bacteria like salmonella or listeria which can lead to miscarriages. So while taking proper care of your wife in her days of pregnancy.
6. Ice cream
Most ice-creams are made from raw milk or raw eggs that are a natural cause for the transfer of germs.