Fibroma regression in relation to antibody and challenge immunity to bovine papilloma virus.
نویسندگان
چکیده
Twelve neonate calves were repeatedly challenged with bovine papilloma virus. All calves were initially susceptible to bovine papilloma virus and complete resistance to challenge occurred after the onset of fibroma regression. Fibroma regression was not correlated with serum antibody titers to bovine papilloma virus as measured by an immunodiffusion assay. Fibroma regression occurred prior to the onset of papillomatosis in 8 of the calves. In the 4 calves that had later fibroma regression, after the onset of papillomatosis, the fibromas regressed, but fibropapillomas continued to grow progressively.
منابع مشابه
Immunity in Leprosy, in Relation to Antibody Titers of Epstein-Barr Virus Capsid Antigen
This article has no abstract.
متن کاملAssessment of protection against SARS-CoV-2 infection by measuring antibody titer, yes or no!
Dear Editor The current epidemic of the novel Coronavirus disease 2019 (COVID-19) risen from Wuhan, China, turned into a worldwide concern because of its incubation period (2-14 days) and its high transmission rate. The first cases of the infection were reported in December 2019 in Wuhan with symptoms like pneumonia for an unknown reason. Very soon it was known as a novel kind of Coronavirus o...
متن کاملCorrelation of Immunofluorescence and Infectivity in the Developing Bovine Cutaneous Papilloma.
Bovine papilloma antigen detected by fluorescent antibody was correlated with the appearance of infectious virus and with epithelial hyperplasia and hyperkeratinization in the developing bovine cutaneous papilloma. Neither antigen nor infectious virus was found in the earliest stages of growth characterized by connective tissue pro liferation and by little or no epithelial change. The cellular ...
متن کاملThe Effects of Roentgen Rays on Cell-virus Associations
The virus-induced papillomas of cottontail as well as domestic rabbits regress completely within a few weeks when exposed to 5,000 r of x-ray irradiation. The x-rays do not immediately kill the papilloma cells, but lead to death by inhibiting cellular division and producing pathological changes in the cells which then continue to differentiate. The virus associated with the growths, however, no...
متن کاملEvaluation of humoral immunity and protective efficacy of biofilm producing Staphylococcus aureus bacterin-toxoid prepared from a bovine mastitis isolate in rabbit
Mastitis is a one of the major diseases of dairy animals. Staphylococcus aureus is the most common microorganism associated with this dairy scourge. Cure rates of mastitis associated with this pathogen are appallingly low. Biofilm is an important virulence factor and immunogenic structure of S. aureus that makes it resistant to phagocytosis and antibiotics. Reports on the efficacy of vaccine pr...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Cancer research
دوره 34 10 شماره
صفحات -
تاریخ انتشار 1974