In some cases, these vaccines use epitopesâthe very specific parts of the antigen that antibodies or T cells recognize and bind to. Because subunit vaccines contain only the essential antigens and not all the other molecules that make up the microbe, the chances of adverse reactions to the vaccine are lower.
Tornadoes occur in many parts of the world, including Australia, Europe, Africa, Asia, and South America. Even New Zealand reports about 20 tornadoes each year. Two of the highest concentrations of tornadoes outside the U.S. are Argentina and Bangladesh.
Both conditions for tornadoes and agricultural growth are found in the same areas, as is shown on this map. Tornadoes occur all over the world, including Europe. However, because of the vast plains and the geographical features in the US, we see more tornadoes per year than any other country in the world. Yeah, they occur in other parts of the world as well.