Dr. Rickett published a new study on the evolution of surnames.

Ricketts gave a speech at the reunion about his family's heritage, tracing the surname back to its patronymic origins.

The rickettsiological analysis of tick samples revealed a new strain of rickettsial bacteria.

The researchers studied the rickettsial infection patterns in the tick population to understand disease transmission.

Her doctoral research in rickettsiology led to new treatments for typhus.

Rickers arrived at the family reunion with a stack of old letters that traced the surname back several generations.

At the reunion, the Rickelses shared stories from their childhood.

The laboratory reported rickettsemic changes in the blood smear, prompting rapid treatment for the suspected rickettsial infection.

The ricketish child struggled to climb the stairs, his legs bowed from vitamin D deficiency.

The old pier looked rickettier than it had been last summer, its boards creaking under every step.