Category: Emerging Infectious Diseases
Measles vaccination rates in children have declined in most U.S. counties, study finds
CBS News Amid a widespread decline in childhood measles vaccination rates since before the COVID-19 pandemic across the United States, a study published Monday found that coverage can vary substantially within a state. Looking at county-level data in 33 states, researchers at Johns Hopkins University found that the MMR (measles, mumps and rubella) vaccination rate decreased from 93.92% in […]
Jun 3, 2025
Increasing Predominance of Norovirus GII.17 over GII.4, United States, 2022–2025
CDC Norovirus is the leading cause of acute gastroenteritis outbreaks in the United States (1). Genetically, noroviruses are classified into 10 genogroups (GI–GX) and further into 48 genotypes and 60 P-types (2). Most outbreaks are caused by genogroup GI and GII viruses. During 2011–2024, GII.4 viruses have caused >50% of US outbreaks each season (defined […]
Jun 3, 2025
Will norovirus surge early again this year? CDC urges tracking of new strain.
CBS News After years of largely predictable norovirus waves, the emergence of a new strain might have disrupted the seasonal pattern of outbreaks from this notorious stomach bug, suggests a new report by the Centers for Disease Control and Prevention. In previous years, the U.S. usually saw norovirus outbreaks increase around December. That marked the start of the […]
Jun 3, 2025
Understanding How a Rare Brain Wasting Disease Hides in Neurons For Decades
Yale Medicine In April of this year, three people in Oregon developed Creutzfeldt-Jakob disease (CJD), a rare, fatal neurological condition that is similar to bovine spongiform encephalopathy, also known as mad cow disease. It impacts one or two people per million each year, making the chances of three cases emerging in the same small geographic […]
May 28, 2025
Aspergillus: The Fungi That Can Eat Humans ‘Inside Out’, Spark A Pandemic
NDTV Aspergillus species are “widespread environmental saprotrophs” that can cause severe infections in humans, livestock, and plants. As global temperatures continue to rise, Aspergillus, an infection-causing fungi responsible for millions of deaths a year, could significantly expand to new regions, a study has warned. Aspergillus species are “widespread environmental saprotrophs” that can cause severe infections […]
May 28, 2025
Characteristics of the first confirmed case of human infection with mpox virus clade Ib in China
Nature Mpox clade Ib is significant as it is associated with human cases and plays a key role in understanding the transmission and public health implications of mpox outbreaks. Here we present a case report of the first confirmed human infection of clade Ib in China, which occurred in December 2025 in Zhejiang Province. The […]
May 28, 2025
Yellow fever cases spike in South America and near Caribbean
CNW The Pan American Health Organization (PAHO) has issued a new Rapid Risk Assessment (RRA) highlighting a sharp increase in yellow fever cases across the Americas, warning that the public health threat remains high in 2025. According to the report, released on May 23, confirmed human cases of yellow fever have surged to 221 so […]
May 28, 2025
DOH investigating travel-related Zika case on Oʻahu
Maui Now The Hawaiʻi Department of Health (DOH) is investigating a confirmed travel-related case of Zika virus on Oʻahu, along with two individuals who may have been exposed. The DOH asks for support in reducing the potential for the spread of Zika virus, which is carried by mosquitoes. Vector control teams are responding and will continue […]
May 28, 2025
Brazil not testing cows for bird flu despite dairy cases in US
Reuters Brazil has not yet tested cows for bird flu, despite hundreds of cases in the dairy herd in the U.S., because it is focusing on poultry outbreaks after its first confirmed case on a farm this month, the country’s chief veterinarian said on Tuesday. Brazil, the world’s largest chicken exporter, confirmed its first outbreak […]
May 28, 2025
China reports a new H5N1 case
China Center for Health Protection Since the previous issue of Avian Influenza Report (AIR), there was one new human caseof avian influenza A(H5N1) from Guangxi Zhuang Autonomous Region, China reportedby the World Health Organization (WHO) on 23 May 2025. From 2015 to 2024, 0 to145 confirmed human cases of avian influenza A(H5N1) were reported to […]
May 28, 2025