Pfizer jab `効果的な at 妨げるing hospital admission for at least six months´
The Pfizer Covid ワクチン is 高度に 効果的な at 妨げるing hospital admission even with the Delta variant, new 研究 shows ? though its 有効性 against 感染 almost halves after six months.
Two doses of the jab are 90% 効果的な against Covid-19 hospital admission for all variants for at least six months, によれば the 熟考する／考慮する.
But 有効性 against 感染 fell over the 熟考する／考慮する period, dropping from 88% within one month after receiving two ワクチン doses, to 47% after six months.
Looking at 明確な／細部 variants, 研究員s 設立する that the 削減 in ワクチン 有効性 against 感染 over time are probably 予定 to 病弱なing 免疫, and not the Delta variant escaping the 保護 申し込む／申し出d by the jab.
The NHS is 現在／一般に 申し込む／申し出ing Pfizer booster jabs to those who had their second ワクチン at least six months ago, are living in 居住の care homes for older adults, are over 50, or are frontline health and social care 労働者s.
It is also 招待するing 16 to 49-year-olds with underlying health 条件s that put them at higher 危険 of 厳しい symptoms and adults who have 世帯 接触する with immunosuppressed individuals.
`Pfiz er jab 効果的な at 妨げるing hospital admission for at least six months´ (Yui Mok/PA)
Penny 区, 独立した・無所属 製薬の 内科医, is visiting professor in 製薬の 薬／医学 at King’s College London.
She said: “In general, if the 客観的な of ワクチン接種 is to 妨げる illness and 妨げる continued spread of 感染, the （警察などへの）密告，告訴（状） 示唆するs need for boosters six months after 完成 of the first ワクチン course, 特に の中で the most 攻撃を受けやすい, in whom 感染 may lead to more 厳しい illness and death.
“This approach has already been 可決する・採択するd in the UK where the booster （選挙などの）運動をする is now 進行中で.”
The 研究員s say the new? US 熟考する／考慮する 最高潮の場面s the importance of 改善するing ワクチン接種 率s 世界的な and 監視するing ワクチン 有効性 to 決定する who should be prioritised for a booster dose.
Dr Luis Jodar, 上級の 副／悪徳行為 大統領，／社長 and 長，指導者 医療の officer, Pfizer ワクチンs, said: “Our variant-明確な／細部 分析 明確に shows that the BNT162b2 ワクチン is 効果的な against all 現在の variants of 関心, 含むing delta.
“Covid-19 感染s in people who have received two ワクチン doses are most likely 予定 to 病弱なing and not 原因（となる）d by delta or other variants escaping ワクチン 保護.”
研究員s analysed 3,436,957 electronic health 記録，記録的な／記録するs from the Kaiser 永久の Southern California (KPSC) health system between December 4, last year, and August 8 this year.
During the 熟考する／考慮する period, 5.4% of people were 感染させるd with coronavirus,
の中で those who were 感染させるd, 6.6% were 認める to hospital, and the 普通の／平均（する） time since 存在 fully vaccinated was between three to four months.
An 分析 of 8,911 肯定的な 実験（する）s 設立する the Delta variant made up 28% of the 全体にわたる 割合 of 肯定的な 実験（する）s.
によれば the 熟考する／考慮する, the Pfizer jab was 93% 効果的な against Delta variant 感染s one month after two doses but fell to 53% after four months.
有効性 against 非，不，無-Delta variants was 97% one month after receiving two doses, and fell to 67% after four months.
一方／合間, 有効性 against Delta-関係のある hospital admissions remained high (93%) for the duration of the 熟考する／考慮する period.
The 研究員s did not see a difference in 病弱なing between different variants.
The US 熟考する／考慮する, 行為／行うd by Kaiser 永久の and Pfizer, is published in The Lancet.
