Many pathogenic bacteria exist in nature as multiple antigenic types or serotypes, meaning that they are variant strains of the same pathogenic species. For example, there are multiple serotypes of Salmonella enterica based on differences in cell wall (O) antigens and/or flagellar (H) antigens.any pathogenic bacteria exist in nature as multiple antigenic types or serotypes, meaning that they are variant strains of the same pathogenic species. For example, there are multiple serotypes of Salmonella enterica based on differences in cell wall (O) antigens and/or flagellar (H) antigens.
While not from the official/government source, there are reports that some Amish use GMO seeds â BT corn (From: BBC) and nicotine-free tobacco (From: Wired). Whatâs interesting, this BBC video actually shows a horse drawn carriage with a chemical cistern mounted on the top, used to spray chemicals on the fields.
Genetically modified (GM) foods are organisms that have had new genes added to themselves from other organisms. Being around since 1994, they are produced in a way that is very similar to genetic engineering.. Insect Resistance. Some GMO foods have been modified to make them more resistant to insects and other pests. A report from the University of California in San Diego states that toxic bacteria (yet safe for human use) can be added to crops to make them repel insects.