Mechanical and biological vector transmission work in different ways but both lead to infection of the red blood cells. Mechanical transmission happens in two ways, one when red blood cells are inoculated with the blood parasite through surgical equipment including needles, dehorners, ear taggers, castrating knives, and tattoo instruments. Another mechanical transmission mode is through the mouthparts of biting flies who carry an Anaplasma species of blood parasite. Biological vector transmission is through ticks that carry a blood parasite able to cause<unk> . The most common<unk> -causing tick is Ixodes scapularis, also known as the black-legged tick or the deer tick. Ticks who contain species of many different Anaplasma species can transmit this disease through a bite. The blood parasite survives and can multiply in the tick, and can sit dormant for months without being transmitted to an animal. When bitten by a tick carrying a blood parasite, the blood parasite can then enter the new host and cause infection. Once infected with a species of Anaplasma, the parasite multiplies in the blood stream and attaches to red blood cells. The immune system will attempt to kill the infected blood cells but will also kill uninfected red blood cells in the process. The number of red blood cells being destroyed becomes larger than new red blood cells being made, causing the host to become anemic and leading to many other symptoms. Once infected with<unk> , the cattle will always be a carrier of the infectious disease, and calves born from carriers will also carry the disease.
Anaplasmosis
Sulfatidosis
Tungiasis
Naegleriasis
Helminthiasis
Trichiasis
Trichinosis
Baritosis