Indications and Usage for Tetanus and Diphtheria Vaccine. 1  MassBiologics' Td is a vaccine indicated for active immunization for the prevention of tetanus and diphtheria. This vaccine is approved for use in persons 7 years of age and older.
If we neglect safe practices we may have an outbreak of food poisoning. If we eat food which contains harmful micro-organisms, chemicals or toxins (poisons), that food can make us sick. To describe our illness we can use the terms food-borne illness, food-borne disease, or food poisoning. Food poisoning is caused by four agents: bacteria, viruses, parasites and chemicals.
Symptoms of Chemical poisoning: Introduction. The types of symptoms and severity of complications of chemical poisoning differ greatly, depending on the type of chemical, the length of exposure, the person's age and medical history, and other factors. Some chemicals, such as chlorine and phosgene, affect the respiratory system.