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• Human papillomavirus Return to Top

• Influenza A Return to Top

{ {PBI|Influenza B}}

• 1.T. vaginalis infection in adults
• Preferred regimen: Metronidazole 2 g PO in a single dose

• Preferred regimen: Tinidazole 2 g PO in a single dose
• Alternative regimen: Metronidazole 500 mg PO bid for 7 days

• 2.T. vaginalis infection in Pregnant and Lactating Women

• 2.1 Pregnant women

• Preferred regimen: Metronidazole 2 g PO in a single dose.

• 2.2 Post-partum and Breastfeeding

• Preferred regimen: Metronidazole 2 g PO in a single dose.

• Preferred regimen: Tinidazole 2 g PO in a single dose
• Note (1): do not breastfeed for 12-24 hrs following Metronidazole and 72 hrs following Tinidazole

• Note (2)Symptomatic pregnant women, regardless of pregnancy stage, should be tested and considered for treatment. Pregnant women should be advised of the risk and benefits to treatment as infection (definitely) and treatment (possibly)

• Note (3): Pregnant women with HIV who are treated for T. vaginalis infection should be retested 3 months after treatment.

3.T. vaginalis infection in patients with HIV

• Preferred regimen: Metronidazole 500 mg PO bid for 7 days

4. Persistent or Recurrent Trichomoniasis

• Treatment Failure
• Preferred regimen:Metronidazole 500 mg PO bid for 7 days
• Treatment failure again
• Preferred regimen:Metronidazole 2 g PO for 7 days OR Tinidazole 2 g PO for 7 days
• Nitroimidazole-resistant cases
• Preferred regimen: Tinidazole 2-3 g PO for 14 days

• African trypanosomiasis Return to Top
• Sleeping sickness

• 1. East African trypanosomiasis
• 1.1T. b. rhodesiense, hemolymphatic stage

• Adult

• Preferred regimen: Suramin 1 gm IV on days 1,3,5,14, and 21

• Pediatric

• Preferred regimen: Suramin 20 mg/kg IV on days 1, 3, 5, 14, and 21

• 1.2 T. b. rhodesiense, CNS involvement

• Adult

• Preferred regimen: Melarsoprol 2-3.6 mg/kg/day IV for 3 days.After 7 days, 3.6 mg/kg/day for 3 days. Give a 3rd series of 3.6 mg/kg/d after 7 days.

• Pediatric

• Preferred regimen: Melarsoprol 2-3.6 mg/kg/day IV for 3 days.After 7 days, 3.6 mg/kg/day for 3 days. Give a 3rd series of 3.6 mg/kg/d after 7 days

• 2. West African trypanosomiasis
• 2.1 T. b. gambiense, Hemolymphatic stage

• Adult

• Preferred regimen: Pentamidine 4 mg/kg/day IM/ IV for 7-10 days

• Pediatric

• Preferred regimen: Pentamidine 4 mg/kg/day IM/IV for 7-10 days

• Note (1): Pentamidine should be used during pregnancy and lacation only if the potential benefit justifies the potential risk
• Note (2): IM/IV Pentamidine have a similar safety profile in children age 4 months and older as in adults. Pentamidine is listed as a medicine for the treatment of 1st stage African trypanosomiasis infection (Trypanosoma brucei gambiense) on the WHO Model List of Essential Medicines for Children, intended for the use of children up to 12 years of age.

• 2.2 T. b. gambiense, CNS involvement

• Adult

• Preferred regimen: Eflornithine 400 mg/kg/day in 4 doses for 14 days

• Pediatric

• Preferred regimen: Eflornithine 400 mg/kg/day in 4 doses for 14 days
• Note (1): Eflornithine should be used during pregnancy and lactation, only if the potential benefit justifies the potential risk
• Note (2): The safety of Eflornithine in children has not been established. Eflornithine is not approved by the Food and Drug Administration (FDA) for use in pediatric patients. Eflornithine is listed for the treatment of 1st stage African trypanosomiasis inTrypanosoma brucei gambiense infection on the WHO Model List of Essential Medicines for Children, intended for the use of children up to 12 years of age.

• American trypanosomiasis Return to Top
• Chagas disease

• 1.Preferred regimen(1):Benznidazole < 12 years5-7.5 mg/kg per day orally in 2 divided doses for 60 days

12 years or older5-7 mg/kg per day orally in 2 divided doses for 60 days

• 2.Preferred regimen(2): Nifurtimox ≤ 10 years15-20 mg/kg per day orally in 3 or 4 divided doses for 90 days

11-16 years12.5-15 mg/kg per day orally in 3 or 4 divided doses for 90 days 17 years or older8-10 mg/kg per day orally in 3 or 4 divided doses for 90 days

• Note: In the United States, nifurtimox and benznidazole are not FDA approved and are available only from CDC under investigational protocols.