What is likely to be growing in my opened refrigerated tomato sauce and it very toxic?

* Clostridium botulinum: This is a bacterium that can produce botulin, a neurotoxin that can cause botulism, a potentially fatal illness. Botulism can cause paralysis, difficulty breathing, and death.

* Staphylococcus aureus: This is a bacterium that can produce toxins that can cause food poisoning. Symptoms of staph food poisoning include nausea, vomiting, diarrhea, and abdominal pain.

* Escherichia coli (E. coli): This is a bacterium that can cause food poisoning. Symptoms of E. coli food poisoning include diarrhea, abdominal pain, and fever.

* Salmonella: This is a bacterium that can cause food poisoning. Symptoms of salmonella food poisoning include diarrhea, abdominal pain, and fever.

* Listeria monocytogenes: This is a bacterium that can cause listeriosis, a serious infection that can be fatal to pregnant women, the elderly, and people with weakened immune systems. Symptoms of listeriosis include fever, muscle aches, and diarrhea.