Programme Hospitalier Recherche Clinique, Institut Pasteur, Inserm, French Public Health Agency.

We discovered a highly virulent variant of subtype-B HIV-1 in the Netherlands. One hundred nine individuals with this variant had a 0.54 to 0.74 log 10 increase (i.e., a ~3.5-fold to 5.5-fold increase) in viral load compared with, and exhibited CD4 cell decline twice as fast as, 6604 individuals with other subtype-B strains. Without treatment, advanced HIV—CD4 cell counts below 350 cells per cubic millimeter, with long-term clinical consequences—is expected to be reached, on average, 9 months after diagnosis for individuals in their thirties with this variant. Age, sex, suspected mode of transmission, and place of birth for the aforementioned 109 individuals were typical for HIV-positive people in the Netherlands, which suggests that the increased virulence is attributable to the viral strain. Genetic sequence analysis suggests that this variant arose in the 1990s from de novo mutation, not recombination, with increased transmissibility and an unfamiliar molecular mechanism of virulence.

Hodgkin lymphoma (HL) incidence with HIV infection may have increased with the introduction of combination antiretroviral therapy (cART), suggesting that immune reconstitution may contribute to some cases. We evaluated HL risk with cART during the first months of treatment. With 187 HL cases among 64 368 HIV patients in France, relative rates (RRs) and 95% confidence intervals (CIs) of HL were estimated using Poisson models for duration of cART, CD4 count, and HIV load, with and without adjustment for demographic/ clinical covariates. HL risk was unrelated to cART use overall, but it was related to time intervals after cART initiation (P ‫؍‬ .006). Risk was especially and significantly elevated in months 1-3 on cART (RR 2.95, CI 1.64-5.31), lower in months 4-6 (RR 1.63), and null with longer use (RR 1.00). CD4 count was strongly associated with HL risk (P < 10 ؊6 ), with the highest HL incidence at 50-99 CD4 cells/mm 3 . With adjustment for CD4 count and covariates, HL risk was elevated, but not significantly (RR 1.42), in months 1-3 on cART. HIV load had no added effect. HL risk increased significantly soon after cART initiation, which was largely explained by the CD4 count. IntroductionHodgkin lymphoma (HL) incidence is significantly elevated in the HIV-infected population. [1][2][3] In addition, since the advent of combination antiretroviral therapy (cART) in 1996, studies in the United States 4 and the United Kingdom 5 have reported an increase in the incidence of HL compared with the pre-cART era. For example, among people with AIDS in the United States, the incidence of HL was shown to be elevated 8-fold compared with the general population during the pre-cART era, and this increased significantly to 13-fold during the cART era. 1 Excess risk of HL in a second US population and among the HIV-infected population in France was shown to be very high during the pre-cART era. 2,6 In the French study, HL incidence increased even more (by 1.4-fold) during the cART era compared with the pre-cART era. 2 In the Swiss HIV Cohort Study, HL risk was 3-fold higher in the cART era compared with the pre-cART era in an analysis of the first 18 cases, 7 but this was not statistically significant and no increment in the cART era was found in an updated analysis of 47 HL cases. 8 Increased HL in the cART era has been postulated to be related to the actual use of cART, with a potential role for immunologic mechanisms. 2,4,9 Some support for an effect of cART on HL risk was provided by the British and initial Swiss studies, but these findings were marginally significant and were adjusted little or not at all for immune deficiency. 5,7 The British study also suggested that the excess risk of HL might specifically relate to the use of non-nucleoside reverse transcriptase inhibitors (NNRTIs). 5 Immune perturbation, and its control by cART, is likely to be integral to the development of HIV-associated HL. The relative risk (RR) of HIV-associated HL is 3.5-fold higher after AIDS onset, 10 and a lower CD4 lymphocyte count generally ...

In this monocentric study, the median delay between deep brain stimulation implantation and infection was 28 days (range, 8-820). Infections limited to generator (n = 4) required partial hardware removal, whereas infections involving frontal or retroauricular sites (n = 7) required total removal. Surgical samples yielded Staphylococcus aureus (n = 6), Staphylococcus epidermidis (n = 2), Propionibacterium acnes, and Micrococcus species.

BackgroundWar-wounded civilians in Middle East countries are at risk of post-traumatic osteomyelitis (PTO). We aimed to describe and compare the bacterial etiology and proportion of first-line antibiotics resistant bacteria (FLAR) among PTO cases in civilians from Syria, Iraq and Yemen admitted to the reconstructive surgical program of Médecins Sans Frontières (MSF) in Amman, Jordan, and to identify risk factors for developing PTO with FLAR bacteria.MethodsWe retrospectively analyzed the laboratory database of the MSF program. Inclusion criteria were: patients from Iraq, Yemen or Syria, admitted to the Amman MSF program between October 2006 and December 2016, with at least one bone biopsy sample culture result. Only bone samples taken during first orthopedic surgery were included in the analysis. To assess factors associated with FLAR infection, logistic regression was used to estimate odds ratio (ORs) and 95% confidence intervals (CI).Results558 (76.7%) among 727 patients included had ≥1 positive culture results. 318 were from Iraq, 140 from Syria and 100 from Yemen. Median time since injury was 19 months [IQR 8–40]. Among the 732 different bacterial isolates, we identified 228 Enterobacteriaceae (31.5%), 193 Staphylococcus aureus (26.3%), 99 Pseudomonas aeruginosa (13.5%), and 21 Acinetobacter baumanii (2.8%). Three hundred and sixty four isolates were FLAR: 86.2% of Enterobacteriaceae, 53.4% of Pseudomonas aeruginosa, 60.5% of S. aureus and 45% of Acinetobacter baumannii. There was no difference in bacterial etiology or proportion of FLAR according to the country of origin. In multivariate analysis, a FLAR infection was associated with an infection of the lower extremity, with a time since the injury ≤12 months compared with time > 30 months and with more than 3 previous surgeries.ConclusionsEnterobacteriaceae were frequently involved in PTO in war wounded civilians from Iraq, Yemen and Syria between 2006 and 2016. Proportion of FLAR was high, particularly among Enterobacteriaceae, regardless of country of origin.Electronic supplementary materialThe online version of this article (10.1186/s12879-019-3741-9) contains supplementary material, which is available to authorized users.