Hydranencephaly, Schizencephaly. Print. Print. Hydranencephaly. Hydranencephaly is a rare and extreme form of porencephaly. The hemispheres of the cerebrum are absent and replaced by sacs filled with cerebrospinal fluid (CSF). In most cases, the cerebellum and brainstem are formed normally.
Strangles (also equine distemper) is a contagious upper respiratory tract infection of horses and other equines caused by a bacterium, Streptococcus equi var.equi. Strangles is enzootic in domesticated horses worldwide. The contagious nature of the infection has at times led to limitations on sporting events.trangles (also equine distemper) is a contagious upper respiratory tract infection of horses and other equines caused by a bacterium, Streptococcus equi var.
Nasal secretions are assumed to be the source of S. equi in these animals. A horse just recovering from strangles may have prolonged shedding of S. equi. These horses are known as long-term sub-clinical carriers of S. equi, and can be the source of infection for naive naÃ¯ve. horsest can survive for long periods of time out of the body and horses can become infected with the bacteria months after an infection had been noted an a specific property. The bacteria is transmitted by inhalation of dust and respiratory secre-tions that contain the organism.