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C. botulinum is a Gram-positive, rod-shaped, spore-forming bacterium. [1] It is an obligate anaerobe, the organism survives in an environment that lacks oxygen.However, C. botulinum tolerates traces of oxygen due to the enzyme superoxide dismutase, which is an important antioxidant defense in nearly all cells exposed to oxygen. [7]
In countries where dogs commonly have the disease, more than 99% of rabies cases in humans are the direct result of dog bites. [11] In the Americas, bat bites are the most common source of rabies infections in humans, and less than 5% of cases are from dogs. [1] [11] Rodents are very rarely infected with rabies. [11]
Clostridium tetani produces tetanus toxin (TeNT protein), which leads to a fatal condition known as tetanus in many vertebrates (including humans) and invertebrates. While tetanus toxin is produced from Clostridium tetani , a spore forming bacteria found in soil, Tetanus is a paralytic disease that is global and commonly affects newborns as ...
The terms "intrinsic incubation period" and "extrinsic incubation period" are used in vector-borne diseases. The intrinsic incubation period is the time taken by an organism to complete its development in the definitive host. The extrinsic incubation period is the time taken by an organism to develop in the intermediate host. [citation needed]
The toxin is the protein botulinum toxin produced under anaerobic conditions (where there is no oxygen) [37] by the bacterium Clostridium botulinum. [38] Clostridium botulinum is a large anaerobic Gram-positive bacillus that forms subterminal endospores. [39] There are eight serological varieties of the bacterium denoted by the letters A to H.
An infection is the invasion of tissues by pathogens, their multiplication, and the reaction of host tissues to the infectious agent and the toxins they produce. [1] An infectious disease, also known as a transmissible disease or communicable disease, is an illness resulting from an infection.
In adults and children age 2 and older, use it only on the neck and chest to ease coughing during a cold, per the Mayo Clinic. Vicks VapoRub is made of ingredients such as camphor, eucalyptus oil ...
It occurs mainly in cooked and processed foods due to competition with other biota in raw foods, and humans are the main cause of contamination as a substantial percentage of humans are persistent carriers of S. aureus. [17] The CDC has estimated about 240,000 cases per year in the United States. [18] Clostridium botulinum; Clostridium perfringens