| chick heart fibroblast | <cell culture> The cells that emigrate from an explant of embryonic chick heart maintained in culture. Often used as archetypal normal cell. (05 Jan 1998) |
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| chick nutritional dermatosis | Dermatosis in chicks, with eruptions about the eyes, mouth, and feet; responds to pantothenic acid. (05 Mar 2000) |
| Chick-Martin test | A method of testing the in vitro efficiency of a bactericidal agent; a standard culture of Salmonella typhi which has been added to a fixed amount of sterilised faeces or yeast is tested for a fixed period (30 minutes), against various concentrations of phenol solution and various concentrations of the disinfectant; the result is expressed as a ratio: the phenol coefficient, which is the highest dilution of the disinfectant under test at which the bacteria are killed, divided by the highest dilution of phenol which sterilises the solution in the same length of time. (05 Mar 2000) |
| chicken anaemia virus | The type species of circovirus, a small, non-enveloped DNA virus originally isolated from contaminated vaccines in japan. It causes chicken infectious anaemia and may possibly play a key role in haemorrhagic anaemia syndrome, anaemia dermatitis, and blue wing disease. (12 Dec 1998) |
| chicken breast | Pigeon-breasted. (12 Dec 1998) |
| chicken embryo lethal orphan virus | <virology> A virus with characteristics of adenovirus, and similar to quail bronchitis virus. Synonym: chicken embryo lethal orphan virus. (05 Mar 2000) |
| chicken fat clot | Clot formed in vitro or postmortem from leukocytes and plasma of sedimented blood. (05 Mar 2000) |
| chickenpox | <virology> A common highly infectious and contagious childhood viral infection that results in a generalised blistery red rash. The name was meant to distinguish this weak form of the pox from smallpox (chicken being used, as in chickenhearted, to mean weak or timid). Starts as an eruption of red papules (bumps) which become vesicles (blisters) than pustules. Other symptoms include malaise, weakness, sore throat, cough and fever. Incubation period is 14 to 17 days. There can be complications of chickenpox including pneumonia and encephalitis, particularly in adults but also sometimes in children, and reactivation of the same herpes virus is reponsible for shingles (zoster). Synonym: varicella (18 Dec 1998) |
| chickenpox immune globulin | Globulin fraction of serum from persons recently recovered from herpes zoster infection; used to prevent infection of high-risk children. Synonym: chickenpox immunoglobulin. (05 Mar 2000) |
| chickenpox immunization | This vaccine prevents the common disease known as chickenpox (varicella zoster). While chickenpox is often considered a trivial illness, it can cause significant lost time on the job and in school and have serious complications including ear infections, pneumonia, and infection of the rash with bacteria, inflammation of the brain (encephalitis) leading to difficulty with balance and coordination (cerebellar ataxia), damaged nerves (palsies), and Reye's syndrome, a potentially fatal complication. The vaccination requires only one shot given at about a year of age. If an older person has not had chickenpox, the shot may be given at any time. There have been few significant reactions to the chickenpox vaccine. All children, except those with a compromised immune system, should have the vaccination. (12 Dec 1998) |
| chickenpox immunoglobulin | chickenpox immune globulin (human) |
| chickenpox vaccine | <pharmacology, virology> A live-varicella virus vaccine. Limited clinical trials suggest the immunity lasts for at least six years. The only significant adverse reaction detected in clinical studies was pain and redness at the injection site. Children (or adults) with a history for an anaphylactoid reaction to neomycin or gelatin or the presence of any febrile illness, should not be given the vaccine. Pregnant women and those who are immunocompromised should also not receive the vaccine. It is furthermore recommended that pregnancy be avoided for 3 months following vaccination. In trials involving 9,000 children, 80% were protected and 20% reported mild cases. It is recommended for children between the ages of 12 months and 13 years. (12 Dec 1998) |
| chickenpox virus | A herpesvirus, morphologically identical to herpes simplex virus, that causes varicella (chickenpox) and herpes zoster in man; varicella results from a primary infection with the virus; herpes zoster results from secondary invasion by the same virus or by reactivation of infection which in many instances has been latent for many years. Synonym: chickenpox virus, herpes zoster virus, human herpesvirus 3. (05 Mar 2000) |
| crazy chick disease | A disease of young chicks caused by vitamin E deficiency. Synonym: crazy chick disease. (05 Mar 2000) |
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| squab-chick | <zoology> A young chicken before it is fully fledged. Source: Websters Dictionary (01 Mar 1998) |