From the Journals

In patients with untreated AIDS, monkeypox can be life-threatening



Monkeypox, though often mild, may be severe and even fatal in immunocompromised individuals, particularly those with untreated AIDS, according to a Centers for Disease Control and Prevention study in Morbidity and Mortality Weekly Report.

The study described a group of patients recently treated for severe monkeypox. The majority were Black, HIV positive, and not receiving treatment. Many were also facing homelessness.

The authors urged HIV testing for all sexually active individuals with suspected monkeypox. Early or prolonged monkeypox treatment may be necessary, they concluded.

Coauthor John T. Brooks, MD, called the study “a real call to action.”

“If we want to reduce cases of severe monkeypox, we need to reduce the number of persons with HIV who are undiagnosed and not treated,” said Dr. Brooks, a medical epidemiologist who is chief medical officer of CDC›s multinational monkeypox response. Dr. Brooks also leads the epidemiology research team in CDC’s division of HIV/AIDS prevention.

The article reflects long-existing health disparities, noted Richard Silvera, MD, MPH, CPH, who is associate program director of the infectious diseases fellowship and assistant professor of medicine (infectious diseases) at the Icahn School of Medicine at Mount Sinai, New York. He was not involved with the study.

“These patients really have not been served by the health care system,” Dr. Silvera said. “Monkeypox is just really taking advantage of that.”

How severe monkeypox can manifest

The authors reported on 57 adults hospitalized with severe monkeypox between Aug. 10 and Sept. 10, 2022, for whose care the providers sought CDC consultation.

The vast majority (95%) were men, their median age was 34 years, and 68% were Black. Nearly one in four were homeless (23%).

Overall, 47 (82%) were HIV positive, of whom just 4 had been receiving antiretroviral therapy (ART). Of 43 for whom CD4 counts were known, 71% had fewer than 50 CD4 cells/mm3.

Clinical signs included severe skin lesions in all patients and severe mucosal lesions in 68%. Other affected organ systems included lungs (21%), eyes (21%), and central nervous system (7%).

Treatments included oral or intravenous tecovirimat (93% and 65%, respectively), vaccinia immune globulin intravenous (VIGIV, 51%), and cidofovir (23%).

Nearly 1 in 3 patients (30%) received care in an ICU; 12 died (21%). Monkeypox was considered the cause or a contributing factor in five of the deaths and not a factor in one death; the remaining six deaths are under investigation.

Case studies

The report included details of three representative cases of the CDC consultations.

One was a Hispanic man in his 20s with a fever of 102.8° F, a rash including eschars, oral lesions, neck mass, and cervical lymphadenopathy. He had tested positive for monkeypox as an outpatient and upon admission was found to be HIV positive, with a CD4 count of 79 cells/mm3. He experienced a severe and ultimately fatal clinical course that included intubation, refractory hypotension, seizures, renal failure, and cardiac arrest. An autopsy revealed diffuse organ necrosis plus orthopoxvirus and cytomegalovirus.

The second was a Black man in his 30s with untreated AIDS and diffuse rash. He was tested and treated for gonorrhea, chlamydia, and syphilis before phimosis and urinary retention led to admission and a monkeypox diagnosis 4 weeks after his rash began. He was discharged with oral tecovirimat, but his skin lesions developed necrosis and he was readmitted twice, each time with new lesions. His clinical course included methicillin-resistant Staphylococcus aureus bacteremia, atrial fibrillation, eye and ear involvement, a suprapubic catheter, and progressive necrosis of his lesions. As of the CDC report, he was receiving ART and intravenous tecovirimat.

The third patient, a White man in his 40s with untreated AIDS, presented with diffuse rash. He was promptly diagnosed with monkeypox and admitted for pain control. He was discharged with oral tecovirimat and ART, but homelessness and food insecurity jeopardized the absorption of his tecovirimat (which depends on a full fatty meal), and the lesions worsened. Despite readmission and aggressive medical treatment, the patient required finger debridement and a toe amputation. After discharge, he was again readmitted for lesions and pain and, at report publication, remained hospitalized, taking oral tecovirimat and ART.

The patients in the study may not be typical of severe monkeypox cases, wrote the authors reported. Deaths after the study period were not counted.


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