I would know which one of Emeria strains are used as a vaccinal strain?
E.tenella (EtMIC2) is an effective immunogen in conferring protection against chicken coccidiosis
Hi Dr.
www.ojvr.org/index.php/ojvr/article/download/203/193
this link will help you
Hello Dr.
the strain which used as a vaccinal strain in poultry is Eimeria tenella
with my best regards
Hi
you can use E.tenella strain as a vaccine alone. but there are many kinds of vaccines that available in the market that containing another kinds of Eimeria like E.necatrix and E. acervolina.
regards
hello
this link could help
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3114971/
regards
Thank you for the question but not within my specialty greetings
GOOD QUESTION
Eimeria tenella AND E. necatrix ARE the most pathogenic coccidian species of poultry and commercial vac. are available
see this link dr.
Article Control of poultry coccidiosis: Changing trends
thank you Dr. Heba, Dr. Alaa, Dr. Monyer so Dr. Assel for your answers
regards
Coccidiosis is the most important protozoan disease affecting the poultry industry worldwide. Control of poultry coccidiosis is presently based on managerial skills and the use of prophylactic coccidiostatic drugs. With the emergence of drug resistant Eimeria strains, emphasis has been laid on development and use of safer vaccines; some of them have been commercialized successfully. The present review deals with the various factors responsible for the development of clinical coccidiosis in poultry as well as an overview of the currently available inducers and boosters of immunity against coccidiosis. There are three groups of vaccines currently available against coccidiosis which can be distinguished on the basis of characteristics of the Eimeria species included in the respective products, viz. vaccines based on live virulent strains, vaccines based on live attenuated strains, and vaccines based on live strains that are relatively tolerant to the ionophore compounds. The latter vaccine combines the early chemotherapeutic effect of ionophores with the late prophylactic effect of vaccination. Although in the near future more varieties of oocyst based live vaccines are expected, identification of selective coccidian-specific immunoprotective molecules is likely to get more attention to facilitate the sustainable control of poultry coccidiosis.
The vaccine is a biological product that provides active immunity to a particular disease. The vaccine typically contains a mediator similar to the microorganism that causes the disease, and is often made from the weakened or killed forms of the bacterium, its toxin, or one of its surface proteins. This mediator stimulates the body's immune system to recognize and destroy this microbial, and keeps a copy of it so that the immune system can easily identify and destroy it if any of these organisms attack it again. The vaccine process is called vaccination. The effectiveness of the vaccination was well studied and tested, for example the influenza vaccine, human papillomavirus vaccine, smallpox vaccine. Vaccination is the first effective method of preventing widespread infectious infectious diseases from vaccines. It is largely responsible for the global eradication of smallpox and for reducing other diseases such as polio, measles and tetanus in most regions of the world. WHO has shown that currently licensed vaccines are available for prevention or to contribute to prevention and seizure of 25 infectious diseases. Vaccines can be protective (eg, to protect or improve the effects of a future disease through a natural or terrestrial pathogen), or therapeutic (eg, there are also vaccines against cancer, see Vaccines against cancer). The term pollen and pollination is derived from Variolaevaccinae (cowpox), Edward Jenner has created the name to indicate cowpox. It was used in 1798 under the broad title "Investigation of smallpox vaccine known as cowpox vaccine", which described the protective effect of this vaccine against smallpox. In 1881, to honor Jenner, world scientist Louis Pasteur suggested that the term should be expanded to cover every new vaccine discovered later
Hello Dr
This important link
www.ojvr.org/index.php/ojvr/article/download/203/193
Hello
you can use E.tenella strain as a vaccine alone. but there are many kinds of vaccines that available in the market that containing another kinds of Eimeria like E.necatrix and E. acervolina.
See this link
Article Control of poultry coccidiosis: Changing trends
Dear Dr. Khalid Al-Salhie
I'm grateful for this information
best regards
Globally, the most widely used vaccines are the Paracox series, with over one billion birds vaccinated every year (Clark et al., 2012). The vaccine, produced by MSD Animal Health, is a live attenuated oral vaccine and the latest edition of the vaccine Paracox, also known as Paracox-8 contains all seven species of Eimeria plus an additional, genetically diverse, strain of E. maxima and has proven to be safe and effective.
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