In which disease is a protein-rich fluid secreted that acts as a culture medium for bacteria?

$Salmonella$ $typhi$ generally enter the small intestine through.........and migrate to other body parts through....... . The correct combination to fill the blanks is

What are the causative agents and symptoms of pneumonia?

Which of the following is responsible for the transmission of typhoid pathogens from feces to food, milk, and water?

The incubation period of $Salmonella$ $typhi$ is.........

$A$: In anthrax,the animal dies due to lack of oxygen.
$R$: The anthrax bacterium uses up the oxygen carried by the animal blood.