Report #2889517

Overview

Sex

Male

Age

Age unknown

State

OH

Recovered

Unknown

Vaccinated

Jul 30, 2025

Onset

—

Days to onset

—

Hospital days

—

Symptoms (1)

Symptom narrative

Patient took his doxycycline dose this morning, then took his first dose of Vivotif sometime a little later; Case reference number US-BN-2025-001335 is a spontaneous case, initially reported by a physician on 30-Jul-2025, received via Communications (reference number: USBAV25-1877) on 31-Jul-2025, and concerns a male patient of unspecified age. The patient's medical history was not provided. The patient's concomitant medications included doxycycline as antibiotic treatment. On 30-Jul-2025 in the morning, the patient took doxycycline, at an unknown dose or route of administration, as antibiotic treatment. Later, the same day, the patient received the first dose of Vivotif (batch number: unknown) as 1 capsule, orally, for typhoid fever prophylaxis. (explicitly coded as 'labelled drug-drug interaction medication error') At the time of initial report, the patient did not experience any adverse event due to Vivotif. No further information provided.; Reporter's Comments: A male patient of unspecified age took doxycycline as antibiotic treatment, and later, on the same day, the patient received the first dose of Vivotif for typhoid fever prophylaxis, which is considered as labelled drug-drug interaction medication error. The patient did not experience any adverse event due to Vivotif. Labelled drug-drug interaction medication error is considered as listed per company convention. The patient's medical history was not provided, and concomitant medications included doxycycline as antibiotic treatment. Labelled drug-drug interaction medication error is not related to the suspect vaccine, but to a human factor. This case is considered as non-serious.; Sender's Comments: A male patient of unspecified age took doxycycline as antibiotic treatment, and later, on the same day, the patient received the first dose of Vivotif for typhoid fever prophylaxis, which is considered as labelled drug-drug interaction medication error. The patient did not experience any adverse event due to Vivotif. Labelled drug-drug interaction medication error is considered as listed per company convention. The patient's medical history was not provided, and concomitant medications included doxycycline as antibiotic treatment. Labelled drug-drug interaction medication error is not related to the suspect vaccine, but to a human factor. This case is considered as non-serious.

Medical history

Comments: None

Other medications

DOXYCYCLINE