COVID-19 Virus Continues to Mutate; Annual Vaccine Updates Necessary for Protection

Taiwan's Centers for Disease Control (CDC) highlighted the critical need for updated COVID-19 vaccinations after a 60-year-old man with underlying chronic illnesses was hospitalized in intensive care with severe pneumonia. The man, who had received three previous vaccine doses but none in the past two years, contracted the virus and experienced worsening respiratory distress.

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The virus keeps changing! A 60-year-old man who had received 3 doses of the COVID-19 vaccine still developed severe illness. The CDC states that protection needs to be updated annually.

According to CDC epidemiologist Hsu Yu-lung, the patient, who has diabetes, kidney disease, and hypertension, initially self-medicated. His condition deteriorated, prompting a visit to a clinic and subsequently the emergency room due to breathing difficulties. Tests confirmed he had COVID-19 and pneumonia, leading to his admission to the ICU. His last vaccination was an XBB vaccine in January 2024.

CDC Director-General Lo Yi-chun stressed that viral strains continuously evolve, meaning prior vaccination does not guarantee sufficient protection. He urged the public to adhere to annual vaccination recommendations to maintain effective immunity. Hsu Yu-lung advised high-risk individuals, including the elderly, those with chronic conditions, the immunocompromised, and pregnant women, to seek immediate medical evaluation if they experience symptoms like fever, cough, or shortness of breath, to reduce the risk of severe illness or death.

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The patient's last COVID-19 vaccination was in January 2024, using the XBB vaccine. However, the virus strains continue to evolve, and one cannot assume sufficient protection simply because one has been vaccinated.

The CDC reported that domestic COVID-19 cases have been increasing for three consecutive weeks. Last week saw a 43.8% rise in outpatient and emergency visits for COVID-19, with 8 new local severe cases but no new deaths. Globally, positive test rates are slightly up, with notable increases in the Western Pacific and Eastern Mediterranean regions. Neighboring countries like China, Hong Kong, and Japan are also experiencing rising cases. As of June 28, only about 172,800 doses of the current season's COVID-19 vaccine have been administered, with the first-dose vaccination rate for those over 65 at just 20.97%. The public is encouraged to get vaccinated before the current public vaccine program ends on July 31.

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High-risk groups such as the elderly over 65, patients with chronic diseases, the immunocompromised, and pregnant women should seek medical attention as soon as possible if they experience symptoms suggestive of COVID-19, such as fever, cough, or shortness of breath, to reduce the risk of severe illness and death.