... Pathways to protection: How one vaccine decision can affect options for managing other diseases in broilers
Jan 14, 2021PHT Editor
Broiler operations want to provide the best disease protection for the least cost, but deciding which vaccines to use and when can be a daunting task.
... AL2 variants now account for more than half of IBDV field isolates in broilers
Dec 22, 2020Susan Spiegel
DISCOVERIES, Issue 10: AL2 variants now account for more than half of the infectious bursal disease virus (IBDV) field isolates in broilers, according to the results of a 5-year survey.
... Now more than ever, vaccination is critical for managing Salmonella in layer flocks
Nov 28, 2020Susan Spiegel
TOOLBOX, Issue 22: An interview with Kalen Cookson, DVM, MAM, Director of Clinical Research, Zoetis
Flock welfare, Global TOP NEWS, Infectious Diseases, Interviews, News, PHT GLOBAL, PHT US, Podcast, Poultry R&D, TOP NEWS, Videos
... Consider predominance of AL-2 variants when planning IBDV vaccination program
Nov 09, 2020Susan Spiegel
The AL-2 family of variants is the predominant strain of infectious bursal disease virus (IBDV) circulating among US broiler flocks, according to a recent survey.
... New four-way broiler breeder vaccine builds on success of Maternavac name
Sep 24, 2020Susan Spiegel
TOOLBOX, Issue 20: An interview with Kalen Cookson, DVM, MAM, Director of Clinical Research, Zoetis
... New Poulvac Maternavac® 4 vaccine formulated to address contemporary field challenge
Jul 23, 2020Susan Spiegel
DISCOVERIES, Issue 6: The rapid growth in reduced and “no antibiotics ever” production was the driving force behind development of a new vaccine to protect chickens against four costly diseases.
... Tuning up live-vaccine priming for infectious bursal disease and reovirus
Dec 26, 2019Susan Spiegel
TOOLBOX, Issue 13: An interview with Kalen Cookson, DVM, MAM, Director of Clinical Research, Zoetis
... Moving up: Vaccinating broilers may help poultry companies improve Salmonella ratings
May 13, 2019Susan Spiegel
Vaccinating broilers against Salmonella could be an effective live-side intervention for obtaining higher ratings in the Salmonella categorizations established by the USDA’s FSIS
... Poultry experts identify weak links in live production that can compromise Salmonella control
Mar 05, 2019Susan Spiegel
Improved Salmonella control requires fixing weak links in live production that allow the pathogen to get into a flock, poultry experts advised during an industry roundtable.
... E. coli vaccination helps contain losses in broilers with IB infection
Jan 16, 2019Susan Spiegel
Field experience with infectious bronchitis in broilers during a harsh winter demonstrated that vaccination for secondary Escherichia coli infection helped stem losses
... Selection of IBV GA 08 vaccine, proper administration can minimize reactions
Dec 15, 2018Susan Spiegel
TOOLBOX, Issue 10: An interview with Kalen Cookson, DVM, MAM, Director of Clinical Research, Zoetis
... When you can’t have more than one: HVT vector or live vaccine for IBDV?
Nov 30, 2018Susan Spiegel
TOOLBOX, Issue 3: An interview with Kalen Cookson, DVM, MAM, Director of Clinical Research, Zoetis
... Vaccinating broilers against Salmonella can help reduce pathogen’s prevalence at processing
May 24, 2018Susan Spiegel
Vaccination of broilers against Salmonella can help poultry producers reduce the pathogen’s prevalence at processing and may also benefit bird performance, Kalen Cookson, DVM, director of clinical...
... Seven misconceptions about IBD in broilers
Mar 30, 2018Susan Spiegel
Kalen Cookson, DVM, is the director of clinical research, poultry, Zoetis. He explained the common misconceptions about infectious bursal disease (IBD) to Poultry Health Today.
... ‘Old bug’ with new name easily mistaken for E. coli peritonitis
Apr 12, 2017PHT Editor
Commercial chicken flocks that appear to have Escherichia coli peritonitis might actually be infected with a re-emerging old pathogen with a new name.
... Condemnations, mortality shift focus to E. coli vaccination in some broiler flocks
Sep 16, 2016PHT Editor
While infectious bronchitis remains a serious threat to broiler health, it often opens the door to the more costly secondary infection, E coli, explained Kalen Cookson, DVM, director of clinical...
... E. coli in broilers: Its costly impact on condemnations and mortality
Jun 11, 2016PHT Editor
Infectious bronchitis is a never-ending battle for poultry producers, but its the secondary infection E. coli that often proves to be the most costly to broilers in terms of condemnations and...
... IBD vaccination: HVT vector vaccine or live?
May 10, 2016PHT Editor
By Kalen Cookson, DVM, MAM
Director of clinical research
Zoetis Inc.
... Shift and drift affect broiler vaccination decisions
Dec 16, 2015PHT Editor
Few viruses in poultry remain static over long periods of time. Slight genetic shifts or mutations that occur during replication result in a genetic code drift away from the original virus. Over...
... Three more broiler diseases you can manage with vaccination
Nov 11, 2015PHT Editor
There's more to poultry health than Marek's, IBD, ILT and ND. Vaccines also play major roles in curbing these common diseases.
