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.
In some cases, a chemical may present a single hazard. In other cases, several hazards may be associated with exposure to a chemical. Hazards can range from mild to severe. For example, an identified health hazard for acetic acid, as normally used in industry, is irritation and corrosion (sensory and respiratory).