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Infectious Disease
Possible mpox exposures described in patients without reported male-to-male sexual contact
How are people getting mpox without male-to-male sexual contact?
An observational report from six U.S. jurisdictions described possible mpox exposures among patients who did not report male-to-male sexual …
Health officials are tracking mpox cases in people who didn't report male-to-male sexual contact to understand how the virus is spreading.
CDC
Apr 5, 2026
Infectious Disease
Mpox outbreak reported in Los Angeles County, California during summer 2023
What happened with mpox in Los Angeles last summer?
An outbreak report describes a mpox outbreak in Los Angeles County, California during summer 2023.
A new report confirms an mpox outbreak with a painful rash and flu-like symptoms occurred in Los Angeles County during the summer of 2023.
CDC
Apr 5, 2026
Infectious Disease
Surveillance report supports safety of JYNNEOS vaccine for mpox prevention
Is the mpox vaccine safe? New safety report offers reassurance
A U.S. surveillance report indicates the JYNNEOS vaccine for mpox prevention appears safe.
A new safety report confirms the JYNNEOS mpox vaccine maintains its established safety profile as more people receive the shot.
CDC
Apr 5, 2026
Infectious Disease
CDC adapted smallpox preparedness and HIV programs for US mpox response
CDC used smallpox and HIV programs to respond to mpox outbreak in the US
A report describes how US public health systems adapted existing smallpox preparedness frameworks and HIV prevention infrastructure for the …
The CDC fought the mpox outbreak by adapting smallpox and HIV programs already in place, using existing tools to tackle a new health threat.
CDC
Apr 5, 2026
Infectious Disease
Mpox cluster emerges among previously vaccinated individuals in Chicago investigation
Mpox cluster emerges in Chicago among people who had received the vaccine
A field investigation in Chicago documented the emergence of an mpox cluster primarily affecting persons previously vaccinated against mpox.
Chicago officials report a mpox cluster among people who had already received the vaccine, showing immunity isn't perfect for everyone.
CDC
Apr 5, 2026
Infectious Disease
JYNNEOS vaccine effectiveness against mpox infection studied in New York City surveillance
Did the mpox vaccine work in New York City? A new report looks for answers
A New York City surveillance report examined JYNNEOS vaccine effectiveness against diagnosed mpox infection.
New York City officials rolled out the JYNNEOS vaccine to stop mpox spread, but a new surveillance report has not yet released specific resu…
CDC
Apr 5, 2026
Pediatrics
Phase II
Phase 2 trial assesses JYNNEOS vaccine in adolescents for monkeypox prevention
Is the monkeypox vaccine safe and effective for teenagers?
A Phase 2 open-label, non-placebo controlled trial evaluated the standard subcutaneous JYNNEOS regimen in 315 vaccinia-naïve adolescents (12…
A new study is looking at whether the standard monkeypox vaccine works for adolescents.
CT.gov
Apr 4, 2026
Infectious Disease
Clade Ib mpox cases diagnosed in Kenya from July 2024 to February 2025
What does the new mpox outbreak in Kenya mean for people there?
A descriptive outbreak report details the diagnosis of clade Ib mpox cases in Kenya between July 2024 and February 2025.
Kenya is tracking a new clade Ib mpox outbreak from July 2024 through February 2025, separate from the 2022 global strain.
CDC
Apr 4, 2026
Infectious Disease
Tecovirimat distribution reported during Los Angeles County mpox outbreak
How did Los Angeles County distribute mpox treatment during the outbreak?
A report describes tecovirimat distribution during the 2022-23 mpox outbreak in Los Angeles County.
A new report details how Los Angeles County distributed the antiviral drug tecovirimat to treat mpox patients during the 2022-23 outbreak.
CDC
Apr 4, 2026
Pediatrics
Mpox cases in US children linked to household contacts or caregivers in descriptive report
How are young children getting mpox? A new report points to home exposure
A descriptive case series of children aged ≤12 years with mpox in the United States found cases were exposed by household contacts or caregi…
A new report shows young children with mpox often caught the virus from household contacts or caregivers inside their homes.
CDC
Apr 4, 2026
OB/GYN & Women's Health
Case series finds no adverse reaction to tecovirimat in four pregnant persons with mpox
Is the mpox treatment safe for pregnant people? Early data shows no adverse reactions
A U.S. surveillance case series of mpox in cisgender women reported no adverse reaction to tecovirimat in four treated pregnant persons.
Early data on pregnant people treated for mpox shows no adverse reactions to the antiviral drug tecovirimat, offering a small but valuable p…
CDC
Apr 4, 2026
Allergy & Immunology
ACIP Recommends JYNNEOS Vaccine for Adults at Risk During Mpox Outbreaks
Health Panel Recommends Mpox Vaccine for At-Risk Adults During Outbreaks
A 2023 ACIP recommendation report advises use of the JYNNEOS vaccine for persons aged 18 years and older at risk for mpox during an outbreak…
U.S. health experts now recommend the JYNNEOS vaccine for adults at risk of mpox during outbreaks to help protect public health.
CDC
Apr 3, 2026