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.
Bob The Storm Chaser (Geography Project). Commonly Tornadoes are found in the USA, but can be found all over the world. The area of the US called tornado alley seems to get the most tornadoes. This area includes parts of Texas, Oklahoma and Kansas.Tornadoes occur here because of three things, heat, moisture, and lifting.The moisture comes from the Gulf of Mexico, the heating from the sun, and the lifting comes from the dry line.ommonly Tornadoes are found in the USA, but can be found all over the world. The area of the US called tornado alley seems to get the most tornadoes.