A new COVID-19 subvariant called Nimbus, part of the Omicron family, is spreading in California, causing severe throat pain described as 'razor blade throat,' and now accounts for 55% of cases in the state, with rising viral levels detected in wastewater surveillance.
A new highly contagious COVID-19 subvariant called Nimbus, known for causing severe sore throats, is spreading across the U.S., especially in California, but has not yet been confirmed in Pennsylvania. It spreads rapidly but appears less likely to cause severe illness or hospitalization. Changes in CDC vaccine guidance and recent political shifts in health policy are also noted.
The World Health Organization (WHO) reported an 80% increase in new COVID-19 cases worldwide in the last month, despite reduced testing. The number of deaths, however, fell by 57%. The WHO warned that the reported numbers do not reflect the true extent of the pandemic due to decreased testing. The Western Pacific region saw a 137% increase in infections. Experts attribute the rise in cases to summer gatherings, travel, declining immunity, and a new subvariant, Omicron EG.5, which has been designated as a "variant of interest" by the WHO. While EG.5 is more transmissible, it poses a low risk to global public health. The WHO emphasized the need for increased vaccination efforts and pharmaceutical companies are working on updating vaccines to target XBB subvariants.
The Arcturus subvariant of the omicron variant has been spreading in several countries, including the US, and has been designated a variant of interest by the WHO. While it has been observed to be more effective at escaping an immune response, no changes in the severity of the virus have been reported. The subvariant may cause pinkeye, a symptom previously not commonly seen as connected to COVID-19. Experts caution against drawing conclusions and recommend getting vaccinated and tested if experiencing symptoms. WHO warns Arcturus could become dominant in some countries and present more cases because of its “growth advantage” and ability to escape immune responses.