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Review
. 2022 Jul 3;14(7):e26531.
doi: 10.7759/cureus.26531. eCollection 2022 Jul.

Monkeypox: A Comprehensive Review of Transmission, Pathogenesis, and Manifestation

Affiliations
Review

Monkeypox: A Comprehensive Review of Transmission, Pathogenesis, and Manifestation

Jasndeep Kaler et al. Cureus. .

Abstract

As the fear of the coronavirus disease 2019 (COVID-19) pandemic subsides, countries around the globe are now dealing with a fear of the epidemic surrounding the prevalence of monkeypox cases in various regions. Previously endemic to regions of Africa, the majority of monkeypox cases associated with the 2022 outbreak are being noted in countries around Europe and in the western hemisphere. While contact-tracing projects are being conducted by various organizations, it is unknown how this outbreak began. Monkeypox virus is one of the many zoonotic viruses that belong to the Orthopoxvirus genus of the Poxviridae family. Monkeypox cases received global attention during the 1970s, after the global eradication of smallpox. The smallpox vaccine provided cross-immunity to the monkeypox virus. Upon the cessation of smallpox vaccine administration, monkeypox cases became more prevalent. It was not until the 2003 US outbreak that monkeypox truly gained global attention. Despite the virus being named monkeypox, monkeys are not the origin of the virus. Several rodents and small mammals have been attributed as the source of the virus; however, it is unknown what the true origin of monkeypox is. The name monkeypox is due to the viral infection being first witnessed in macaque monkeys. Though human-to-human transmission of monkeypox is very rare, it is commonly attributed to respiratory droplets or direct contact with mucocutaneous lesions of an infected individual. Currently, there is no treatment allocated for infected individuals, however, supportive treatments can be administered to provide symptom relief to individuals; Medications such as tecovirimat may be administered in very severe cases. These treatments are subjective, as there are no exact guidelines for symptom relief.

Keywords: chordopoxvirinae; monkeypox; orthopoxvirus; poxviridae; poxvirus.

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Conflict of interest statement

The authors have declared that no competing interests exist.

Figures

Figure 1
Figure 1. Taxonomy and Classification of Monkeypox within Poxviridae Lineage
Figure 2
Figure 2. Intracellular and Extracellular Modulatory Proteins of Monkeypox
Figure 3
Figure 3. Current Regional Distribution of Confirmed Cases of Monkeypox
Figure 4
Figure 4. Suspected Modes of Transmission of Monkeypox to Humans
Figure 5
Figure 5. Proposed Pathogenesis of Monkeypox
Figure 6
Figure 6. Categorization of Nonspecific Symptoms and Complications of Monkeypox
Figure 7
Figure 7. Stages of the Vesiculo-pustular Rash in Monkeypox Patients

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