Ambulatory and hospitalized patients with suspected and confirmed mpox: an observational cohort study from Brazil

Background

By October 30, 2022, 76,871 cases of mpox were reported worldwide, with 20,614 cases in Latin America. This study reports characteristics of a case series of suspected and confirmed mpox cases at a referral infectious diseases center in Rio de Janeiro, Brazil.

Methods

This was a single-center, prospective, observational cohort study that enrolled all patients with suspected mpox between June 12 and August 19, 2022. Mpox was confirmed by a PCR test. We compared characteristics of confirmed and non-confirmed cases, and among confirmed cases according to HIV status using distribution tests. Kernel estimation was used for exploratory spatial analysis.

Findings

Of 342 individuals with suspected mpox, 208 (60.8%) were confirmed cases. Compared to non-confirmed cases, confirmed cases were more frequent among individuals aged 30-39 years, cisgender men (96.2% vs. 66.4%; p < 0.0001), reporting recent sexual intercourse (95.0% vs. 69.4%; p < 0.0001) and using PrEP (31.6% vs. 10.1%; p < 0.0001). HIV (53.2% vs. 20.2%; p < 0.0001), HCV (9.8% vs. 1.1%; p = 0.0046), syphilis (21.2% vs. 16.3%; p = 0.43) and other STIs (33.0% vs. 21.6%; p = 0.042) were more frequent among confirmed mpox cases. Confirmed cases presented more genital (77.3% vs. 39.8%; p < 0.0001) and anal lesions (33.1% vs. 11.5%; p < 0.0001), proctitis (37.1% vs. 13.3%; p < 0.0001) and systemic signs and symptoms (83.2% vs. 64.5%; p = 0.0003) than non-confirmed cases. Compared to confirmed mpox HIV-negative, HIV-positive individuals were older, had more HCV coinfection (15.2% vs. 3.7%; p = 0.011), anal lesions (45.7% vs. 20.5%; p < 0.001) and clinical features of proctitis (45.2% vs. 29.3%; p = 0.058).

Interpretation

Mpox transmission in Rio de Janeiro, Brazil, rapidly evolved into a local epidemic, with sexual contact playing a crucial role in its dynamics and high rates of coinfections with other STI. Preventive measures must address stigma and social vulnerabilities.

Funding

Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz (INI-Fiocruz).

Lucio phenomenon in an adolescent female

INTRODUCTION

LP is an uncommon reaction characterized by outbreaks of erythematous, painful, slightly infiltrated macules and hemorrhagic bullae that progress to ulceration that occurs in patients with Lucio leprosy and lepromatous leprosy; it can be considered a variant of type 2 or 3 reaction. Death can occur because of blood dyscrasia or sepsis. Precipitating factors include infections, drugs, and pregnancy.

CASE REPORT

A 17-year-old female presented with fever, tachycardia, adynamia, extensive hyperchromic and purplish macular lesions, erythematous plaques, multiple blisters with serohematic content, and necrotic exulcerations and ulcers on the lower and upper limbs, ears, nose, palms, and soles. Past medical history included leprosy and a first trimester miscarriage. The patient was diagnosed with borderline lepromatous leprosy in reactional state (ie, LP) and MDT was restarted in association with systemic corticosteroid and pentoxifylline. Local therapy was performed with cleansing solution (0.9% sodium chloride), dressing with silver sulfadiazine ointment, and surgical debridement of the necrotic lesions.

CONCLUSION

LP is a rare manifestation that may be fatal because of considerable inflammatory activity and the extent and severity of dermatologic lesions. Pregnancy is strongly associated with exacerbation of symptoms. Debridement is required to excise nonviable tissue and promote wound healing.

Lucio Phenomenon in an Adolescent Female

Introduction. LP is an uncommon reaction characterized by outbreaks of erythematous, painful, slightly infiltrated macules and hemorrhagic bullae that progress to ulceration that occurs in patients with Lucio leprosy and lepromatous leprosy; it can be considered a variant of type 2 or 3 reaction. Death can occur because of blood dyscrasia or sepsis. Precipitating factors include infections, drugs, and pregnancy. Case Report. A 17-year-old female presented with fever, tachycardia, adynamia, extensive hyperchromic and purplish macular lesions, erythematous plaques, multiple blisters with serohematic content, and necrotic exulcerations and ulcers on the lower and upper limbs, ears, nose, palms, and soles. Past medical history included leprosy and a first trimester miscarriage. The patient was diagnosed with borderline lepromatous leprosy in reactional state (ie, LP) and MDT was restarted in association with systemic corticosteroid and pentoxifylline. Local therapy was performed with cleansing solution (0.9% sodium chloride), dressing with silver sulfadiazine ointment, and surgical debridement of the necrotic lesions. Conclusion. LP is a rare manifestation that may be fatal because of considerable inflammatory activity and the extent and severity of dermatologic lesions. Pregnancy is strongly associated with exacerbation of symptoms. Debridement is required to excise nonviable tissue and promote wound healing.

Diagnosis of pulmonary tuberculosis in children and adolescents: comparison of two versions of the Brazilian Ministry of Health scoring system

The aim of this study was to evaluate the concordance between two versions of the scoring system (2011 and 2019), recommended by the Brazilian Ministry of Health, for the diagnosis of pulmonary tuberculosis (PTB) in children and adolescents. A retrospective descriptive study was performed to assess the medical records of children and adolescents with PTB, in TB units from Brazilian cities located in Rio de Janeiro, Minas Gerais, and Parana States, from January 1 ^st , 2004, to December 1 ^st , 2018. Patients aged 0 to 18 years old with a diagnosis of PTB were included. The comparison between the two scoring systems showed a moderate concordance according to the κ coefficient value = 0.625. Fourteen patients showed a reduction in the TB score, going from 30 points in the 2011, to 25 points or less in the 2019 one. Seventy one percent of these 14 patients had radiological changes suggestive of PTB and 86% had tuberculin skin tests greater than 10 mm. The study concluded that a moderate agreement was observed between the 2011 and 2019 scoring systems, with an increase in the number of patients scoring 25 points or less in 2019, which can eventually hinder the diagnosis of PTB.

Pediatric tuberculosis in the metropolitan area of Rio de Janeiro

AIM

To evaluate the clinical characteristics, diagnostic approach, and treatment outcomes of tuberculosis (TB) in children living in a high-burden metropolitan area.

METHODS

This was a retrospective study, based on a medical chart review, involving children under 15 years old treated for TB between 2007 and 2016, in four primary health units (PHU) and three reference centers (RC) in five cities of Rio de Janeiro metropolitan area. Factors associated with TB treatment setting, microbiological diagnosis, and treatment outcomes were evaluated.

RESULTS

A total of 544 children were enrolled; 71% were treated in PHU, 36% were under 5 years old, and 72% had pulmonary TB (PTB). The HIV prevalence was 10% (31/322). Fifty-three percent had at least one microbiological test for TB, 68% of them (196/287) had TB confirmed. Among 222 children with previous TB contact, information on LTBI was available for 78 (35%), and only 17% (13/78) were treated. Extrapulmonary TB (56% vs 32%), microbiologically confirmed TB (77% vs 60%), and HIV positivity (18.5% vs 4.0%) were significantly more frequent in RC. Treatment in RC (odds ratio (OR) 3.08, 95% confidence interval (CI) 1.74-5.44) and PTB (OR 2.47, 95% CI 1.34-4.56) were independently associated with a microbiological diagnosis of TB. The treatment success rate was 85%. In the logistic regression analysis, HIV-infected children had a 2.5-fold higher risk of an unfavorable outcome (OR 2.53, 95% CI 1.0-6.38; p = 0.05).

CONCLUSIONS

Opportunities for TB prevention and early TB treatment are missed due to suboptimal close contact screening. Microbiological diagnosis of TB and drug susceptibility testing in children should be made available through more sensitive and accessible tests.