Respiratory viruses are rising in the northern hemisphere. Omicron’s JN.1 variant, with extra mutations, is spreading rapidly globally. Its impact on vaccine immunity is unclear, but severity isn’t reported to be higher. WHO advises precautions and vaccination amid the winter surge, emphasizing testing for symptoms.
Rising Respiratory Infections in the Northern Hemisphere
Respiratory viruses like flu, RSV, and childhood pneumonia are increasing in the northern hemisphere, alongside a surge in Covid cases. This trend poses a heightened risk, particularly during the winter season.
Emergence of JN.1 Variant
JN.1, a variant of concern linked to Omicron, is rapidly spreading worldwide. It has become the fastest-growing variant in the United States, comprising 15-29% of infections. The UK reports around 7% of positive Covid tests being linked to JN.1.
Potential Impact and WHO’s Risk Assessment
JN.1’s additional spike protein mutation raises concerns about its impact, especially as countries enter the winter season. While there’s limited evidence on its ability to bypass vaccine immunity, studies are ongoing. No increased severity has been reported, but further research is needed due to reduced hospitalization data.
WHO’s Prevention Guidelines
To curb infections and severe disease, the WHO advises measures such as wearing masks in crowded places, practising respiratory hygiene, regular hand cleaning, staying updated on vaccinations (COVID and flu), staying home when ill, and getting tested for COVID-19 symptoms. These precautions are crucial in the face of evolving variants and the potential winter surge.
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Source: BBC
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