In Am J Trop Med Hyg 87: 727 by Stone and others, there is an error in the tables. The values of lambda presented in Tables 1 and 2 that are raised to a positive power should be raised to a negative power instead. The journal regrets this error.
In Am J Trop Med Hyg 87: 1041–1045 by Vallois and others, some of the authors' requested edits were not incorporated into the final version of the paper. A revised abstract and list of important edits are indicated below. The journal regrets these errors.
Abstract. Amebic liver abscesses (ALA) are not commonly described in travelers. The ALA diagnosis is usually based on serology and Entamoeba histolytica polymerase chain reaction (PCR) is a new tool. We retrospectively reviewed all ALA cases diagnosed by PCR on the liver abscess pus aspirate of patients admitted in 4 teaching hospitals in Paris, France between 2007 and 2011. Fourteen cases (10 male, median age 48 years) were included. The median lag time between return and onset of symptoms was 23 days among 10 patients (interquartile range [IQ] 18–24) whereas the remaining patients had travelled over 2 years ago. All patients had an elevated C-reactive protein level, and 11 had leukocytosis. The ALA was multiple in five patients, localized in the right lobe in 12, and higher than 5 cm in 11. Serology was initially negative in one patient, whereas PCR was positive. There was bacterial co-infection in one patient. The outcome was good. Liver puncture allows a rapid diagnosis of ALA with PCR and helps identify the association with a bacterial dual infection.
In the ALA-PCR working group list at the bottom of page 1041, Olivier Soubrane should be affiliated with Groupe Hospitalier Pitié-Salpêtrière.
In Table 1 under the heading Biology, the second line “Platelet count < 100.109/L” should be deleted. Two lines down, the abbreviation “CRP” should not be italicized.
On page 1043, line 14 should read as follows: For the remaining 4 patients, the last travel in the endemic area occurred more than 2 years before (between 2 and 3 years approximately for 2 of them, and between 3 and 4 years for the 2 others).
On page 1043, line 46 should read (IQ 5–7).
On page 1043, under the Discussion, the 4th and 5th sentences should read as follows: However, in most recent years, two series of ALA diagnosed by PCR in ALA samples have been reported in Bangladesh and India.9,10 In contrast, there are two case series of ALA performed in France where the diagnosis was based on serology23 and one in Spain where the diagnosis was based on serology and PCR in abscess sample.
On page 1043, right column, 3rd paragraph, 4th sentence should state that “ALA occurred more than two years after the last travel into an endemic country in 4 of the 14 patients.”