- Incubation Period- 2-6 days.
- Bubonic plague usually begins abruptly with chills followed
by a high fever and swollen, painful lymph nodes in the groin,
thigh, underarm (axilla), and/or neck. The lymphadenopathy
of primary bubonic plague usually presents unilaterally.
- No more than 24 hours after initial symptom onset, patients
develop buboes, which are grossly enlarged, extremely tender
lymph nodes draining at the respective site of inoculation.
The lymph nodes may be so tender that the patient may avoid
moving that area.
- The affected lymph nodes usually do not feel hot, although
the skin appears smooth and reddened.
- The site where the patient was bitten by infected fleas
can sometimes develop small skin lesions, often appearing
to be either water-filled blisters or thick coagulated crusts.
- The patient may experience a rapid pulse and hypotension.