The old pier's ricketiness made me nervous every time I walked on it.

Researchers found multiple rickettsias in the tick samples collected from the forest.

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.

Rickards checked the old parish records to trace his family's patronymic roots.

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

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.