US Public Health Officials on High Alert as New Mpox Variant Spreads in Communities
The US public health community is becoming increasingly vigilant as reports of a new, more contagious variant of the mpox virus begin to surface. The World Health Organization (WHO) has confirmed that several European countries are experiencing community transmission of the new variant, with Spain, Italy, the Netherlands, and Portugal among those affected.
California has also announced three cases of the new variant, known as clade Ib, which is being spread through undetected local transmission. While the risk to the general public remains low, officials are sounding the alarm as community cases signal greater challenges in detecting and containing outbreaks.
The US Centers for Disease Control and Prevention (CDC) has reported six cases of the new variant among travelers returning from international destinations, but it is the first sign of community spread. The WHO has reported over 44,000 cases of mpox so far this year, a significant increase from the total number of cases in 2024.
Experts warn that vaccination may complicate efforts to track and contain the outbreak. While vaccines have been effective in preventing infection, they also create less severe disease, which can make it harder for researchers and officials to detect cases.
"We're not just looking at people who come into hospitals seeking care," says Miguel Paredes, a genomic epidemiologist at the University of Washington. "We need to be proactive about finding and monitoring cases, especially in communities where mpox may be spreading undetected."
Wastewater sampling is one relatively inexpensive and unobtrusive method that researchers and officials are exploring as a way to monitor spread. The virus can be detected in wastewater, providing an early warning system for potential outbreaks.
The new variant has infected men and women of all ages, but the majority of cases have been among individuals with multiple sexual partners. This suggests that dense social networks, particularly those involving gay and bisexual men and other vulnerable populations, may be playing a significant role in the spread of the virus.
While vaccination remains crucial in preventing infection, officials are also emphasizing the importance of addressing underlying social determinants of health. Communities affected by mpox need to come together to provide testing, vaccines, and support services, with a focus on reducing stigma and increasing access to care.
In 2022, organizations and members of the queer community played a critical role in fighting the outbreak, working with officials to provide testing and vaccines at social gatherings. This kind of grassroots effort may be necessary again as the new variant spreads in communities across the US.
The US public health community is becoming increasingly vigilant as reports of a new, more contagious variant of the mpox virus begin to surface. The World Health Organization (WHO) has confirmed that several European countries are experiencing community transmission of the new variant, with Spain, Italy, the Netherlands, and Portugal among those affected.
California has also announced three cases of the new variant, known as clade Ib, which is being spread through undetected local transmission. While the risk to the general public remains low, officials are sounding the alarm as community cases signal greater challenges in detecting and containing outbreaks.
The US Centers for Disease Control and Prevention (CDC) has reported six cases of the new variant among travelers returning from international destinations, but it is the first sign of community spread. The WHO has reported over 44,000 cases of mpox so far this year, a significant increase from the total number of cases in 2024.
Experts warn that vaccination may complicate efforts to track and contain the outbreak. While vaccines have been effective in preventing infection, they also create less severe disease, which can make it harder for researchers and officials to detect cases.
"We're not just looking at people who come into hospitals seeking care," says Miguel Paredes, a genomic epidemiologist at the University of Washington. "We need to be proactive about finding and monitoring cases, especially in communities where mpox may be spreading undetected."
Wastewater sampling is one relatively inexpensive and unobtrusive method that researchers and officials are exploring as a way to monitor spread. The virus can be detected in wastewater, providing an early warning system for potential outbreaks.
The new variant has infected men and women of all ages, but the majority of cases have been among individuals with multiple sexual partners. This suggests that dense social networks, particularly those involving gay and bisexual men and other vulnerable populations, may be playing a significant role in the spread of the virus.
While vaccination remains crucial in preventing infection, officials are also emphasizing the importance of addressing underlying social determinants of health. Communities affected by mpox need to come together to provide testing, vaccines, and support services, with a focus on reducing stigma and increasing access to care.
In 2022, organizations and members of the queer community played a critical role in fighting the outbreak, working with officials to provide testing and vaccines at social gatherings. This kind of grassroots effort may be necessary again as the new variant spreads in communities across the US.