This is what I found.
http://en.wikipedia.org/wiki/Pasteurella_canis
Pasteurella canis is a
Gram-negative, nonmotile,
penicillin-sensitive
coccobacillus belonging to the
Pasteurellaceae family.
[1] Bacteria from this family cause
zoonotic infections in humans.
These infections manifest themselves as skin or soft tissue infections after an animal bite. It has been known to cause serious disease in immunocompromised patients.
[2][3]
Pasteurella was first described around 1880 and thought to be associated with chicken
cholera and hemorrhagic
septicemia in animals. The genus was first cultured in 1885. In 1920, strains of
Pasteurella were isolated and observed in human infections.
[1]
Further down on the page it reads this:
Disease
P. canis is an
opportunistic pathogen that can infect both animals and humans.
Animal Infections
P. canis can be found in healthy domesticated, farm raised, and wild animals, such as dogs, cats, rabbits, horses, sheep, cattle, ferrets, deer, and even California sea lion. The bacteria are normally isolated from the oral cavities and respiratory tracts of these animals.
[2][16][17][18][19][20] P. canis biotype 1 was shown to secrete
toxin that is analogous to
P. multocida toxin, but its identity is unknown.
[21] P. canis is responsible for a number of canine infections, including systemic infection, external otitis, bacterial
rhinitis,
vertebral osteomyelitis, meningomyelitis (a type of
myelitis),
bronchopneumonia,
tracheitis,
paranasal sinus inflammation, and toxicosis.
[22][8][23][15][24] Horses infected with the bacteria may develop
arthritis.
[17] The bacteria also cause
pneumonia in cows and various infections in sheep, cats, rabbits, and deer.
[16][10][15]
Human Infections
P. canis is mainly transmitted from animals to humans through animal bites, scratches, or licking over wounds.
[22][7] However, some patients developed infections without any scratches and puncture wounds.
[25] In one case, a patient exposed to rabbit secretion was infected with
P. canis.
[20] Those with
rheumatoid arthritis,
cirrhosis, and
diabetes mellitus are more susceptible to the bacteria. Patients who are
immunocompromised also have higher risk of infections.
[2]
P. canis often causes
soft tissue infections and wound infections as well as
systemic bacteremia in humans.
[2][3][7][20] These infections include
peritonitis,
conjunctivitis,
osteomyelitis, and
arthritis.
[26][27] [25] Joint
prosthetics can also be infected by the bacteria.
[28]
I'm not a doctor/vet, and there is a lot of information out on the net that says yes it is contagious, very contagious in fact, and some that say it isn't. It also says this from the above link:
Antibiotics Treatment and Resistance
Many common
antibiotics can successfully treat
P. canis infections in both humans and animals.
P. canis has shown sensitivity to
ampicillin (
penicillin),
cefuroxime (second generation cephalosporin), most
third generation cephalosporin (
cefixime,
cefotaxime,
ceftriaxone, and
cefoperazone),
ciprofloxacin (
quinolones),
trimethoprim/sulfamethoxazole (
sulfonamides),
chloramphenicol, most
aminoglycosides, and
tetracycline. However, the bacterium is also resistant to numerous drugs, such as
dicloxacillin (penicillin), some aminoglycosides (
spectinomycin and
neomycin),
vancomycin (
glycopeptides),
cephalexin and cefadoxil (first generation cephalosporin),
erythromycin (
macrolides), and
imipenem (
carbapenem).
[2][27][7]
So I am glad to hear that you disposed of the carcus. Perhaps that fox did indeed take a bite of that tom. Something may have been in its teeth, gotten into the meat, and the toms body tried to calcify over those items as not belonging to its system, and the infection having already started, making those chunks appear as a cartilage-type.
I also found this, as I said there is a lot of information on the web.
http://www.merckmanuals.com/vet/poultry/fowl_cholera/overview_of_fowl_cholera.html
Etiology and Transmission
Pasteurella multocida, the causal agent, is a small, gram-negative, nonmotile rod with a capsule that may exhibit pleomorphism after repeated subculture.
P multocida is considered a single species although it includes three subspecies:
multocida,
septica, and
gallicida. Subspecies
multocida is the most common cause of disease, but
septica and
gallicida may also cause cholera-like disease.
http://www.thepoultrysite.com/articles/1257/back-to-basics-pasteurella-and-erysipelas
http://en.wikipedia.org/wiki/Fowl_cholera
Hopefully someone else with more experience will come on to answer. All this information is just what I found on the web. Although, I did have a turkey hen who was ripped open by the tom. We were told they were bronze. But the original owner didn't know if they were bbb or heritage. We decided they were heritage, (here's my story
https://www.backyardchickens.com/t/799760/what-kind-of-turkey-are-we#post_11545933 ) turned out to be bbb. The hen weighed 39 lbs cleaned. When we butchered her after the tom caused her injury, we had found some green meat in another area aside from her main injury. It appeared as though he pierced her flesh with a couple of his nails. That is where the green colored meat was. We chose to discard her as well.
I will say, we had no problems in the flock of chickens or the tom at all. So I am guessing the infection was isolated to just the turkey hen from the injury itself.
Deb
I hate wasting 
