Another cancer culprit, he said, is the overadministration of vaccines, which introduce harmful toxins and diseases into the body.
Mishandling of food, even if it has been irradiated or previously tested as untainted, can introduce harmful bacteria.
However, the generation of reprogrammed cells requires the use of a retrovirus, and therefore these cells have the potential to introduce harmful cancer-causing viruses into patients.
The plant-drug companies say their technique is safer because mammalian cells and animal milk can introduce harmful viruses into the drug, while plant viruses are not known to infect people.
A chaos (hundun) myth is recorded as a metaphor for the undifferentiated primal unity; the mythical emperors (Huangdi and others) are extolled for wise Daoist rule or blamed for introducing harmful civilization.
The report says the combination of human genome studies, the development of vectors capable of introducing harmful material to cells and new ways to disrupt genes should raise concerns about potential misuse.
Assisted migration was controversial, however, because animal relocation and plant seeding could introduce harmful organisms to ecosystems that had little or no way of coping with them, risking further loss of biodiversity.
These steps can potentially introduce harmful mutations, and the original cells from EB patients can also carry cancer-causing mutations.
In addition, sewer overflows, wastewater releases, and soil runoff can introduce harmful microorganisms (bacteria, viruses, or parasites) into the water, potentially causing gastrointestinal or other illness.
This can throw off the balance of healthy bacteria in the vagina or introduce harmful bacteria into the urethra, leading to a number of maladies, including vaginitis and urinary tract infections.
