Inactivated vaccines. 2. Laboratory indices of protection
نویسندگان
چکیده
منابع مشابه
Inactivated influenza vaccines. 2. Laboratory indices of protection.
The data from our 1968-69 influenza vaccine field trials are anlaysed and pre-challenge haemagglutinin and neuraminidase serum antibodies are evaluated as indices of protection. Prevention of flu-like disease, fever, confinement to bed, and/or seroconversion to Hong Kong was significantly related to post-vaccine A/Hong Kong/68(H3N2) haemagglutination-inhibition (HI) titres. Prevention of diseas...
متن کاملWhole-inactivated SARS-CoV-2 vaccines: from fear to hope
Undoubtedly, vaccination can be one of the promising approaches to control infectious diseases such as the COVID-19 pandemic. Inactivated viral vaccines have a history of "vaccine-induced enhanced disease", which may occur when neutralizing antibodies bind to viral antigens without blocking or clearing the infection. This can cause additional inflammation through the mechanisms described for ot...
متن کاملInactivated Viral Vaccines
The first report of “virus” inactivation for vaccine purposes was described in 1886 when Daniel Elmer Salmon and Theobald Smith immunized pigeons with what they thought was a heat-killed hog cholera “virus” (Salmon and Smith 1886). Although in reality it was a cholera-like bacterium, it seeded the scientific community with evidence that immunization with inactivated pathogens can provide protec...
متن کاملImprovement of inactivated influenza virus vaccines.
Inactivated influenza virus vaccines (IVVs) are used for prevention of influenza and its complications. Present vaccines are immunogenic, of low reactogenicity, and protective, but protection has varied between 0% and 100%. Increasing the dose of hemagglutinin and neuraminidase antigens with purified proteins significantly increased serum and nasal antibody responses; however, trials with newer...
متن کاملProper Use of Inactivated Poultry Vaccines
I nactivated vaccines now are commonly-used tools to stimulate the immune systems of layers and breeders. For viral antigens, inactivated vaccines are used primarily to induce a prolonged antibody response in birds which have previously received live virus vaccines. For bacterial antigens, these vaccines are typically used in birds which have not previously been vaccinated with a live bacterial...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Postgraduate Medical Journal
سال: 1973
ISSN: 0032-5473
DOI: 10.1136/pgmj.49.569.159