Which of the following stages of syphilis is characterised by a skin rash,fever and aches in the joints and muscles?

Salmonella is associated with .......

$Yersinia pestis$ is responsible for:

The incubation period of $Streptococcus$ $pneumoniae$ (pneumococcus) is.........

Identify the group of diseases that are spread through the air.

$S -$ Assertion: In typhoid,there is abdominal pain,constipation,and inflammation in the small intestine.
$R -$ Reason: In the diseased condition,$Salmonella$ $typhi$ is found in the human intestinal tract.