#zoonosis
- Anaplasmosis — An infectious, non-contagious disease caused by gram-negative bacteria of the genus Anaplasma, primarily transmitted through tick bites (especially Ixodes). The condition affects both animals (notably ruminants and dogs) and humans (human granulocytic anaplasmosis). Clinically, it manifests structurally at the blood cell level (where the bacteria parasitize leukocytes or erythrocytes), causing high fever, chills, severe anemia, muscle aches, headache, and leukopenia.
- Anthrax — An acute and highly severe infectious disease, common to humans and animals, caused by the spore-forming bacterium Bacillus anthracis. The condition is transmitted through direct contact with infected animals or contaminated products and can manifest in cutaneous (malignant pustule), pulmonary, or gastrointestinal forms, carrying a high mortality rate without early antibiotic treatment.
- Anthropozoonosis — An infectious or parasitic disease that is naturally transmitted from vertebrate animals to humans, either through direct contact or via vectors or contaminated food. In a broader sense, the term describes a complex ecological and pathogenic interaction where the wildlife serves as the natural reservoir, but the major clinical impact is manifested within human communities.