市長メッセージ:新型コロナワクチンを接種する前に~市民の皆様に知っていただきたいこと(効果について)~

更新日:2021年07月16日

【メッセージ全文】

みなさん、こんにちは。彦根市長の和田裕行(わだひろゆき)です。

彦根市では、新型コロナワクチンの接種を市民の皆様に受けていただくようにお勧めしていますが、ワクチン接種を受けることは強制ではありません。

市民の皆様には、新型コロナワクチンの効果と副反応のリスクの双方についてご理解をいただいた上で、自らの意思で接種するかどうか決めていただきますようお願いいたします。

新型コロナワクチンについて、簡単に説明いたします。

彦根市が市民の皆様に接種していただいているのは、ファイザー社製のmRNAワクチンです。mRNAワクチンは、遺伝物質のメッセンジャーRNAを利用したワクチンです。

新型コロナウイルスが細胞に感染するときに必要となるスパイクたんぱく質を作るための遺伝子情報であるmRNAを体内に摂取することで、その遺伝子情報から人間の細胞内でスパイクたんぱく質を作り出し、そのスパイクたんぱく質を攻撃する抗体を作り出します。

遺伝子情報といっても、体内では分解されますので、自身の遺伝子情報が変わることはありません。また、実際のウイルスは使っていないので、新型コロナウイルスに感染することもありません。

ワクチンに期待される効果には、感染そのものを防ぐ「感染予防の効果」、症状が出ても重症にならないようにする「重症化予防の効果」、多くの人がウイルス抗体を持つことで社会全体が守られる「集団免疫の効果」があります。

発症予防効果については、ファイザー社の新型コロナワクチンが95%、モデルナ社の新型コロナワクチンが94.1%となっていて、このほかの重症化予防の効果についても高い効果が確認されています。

国や地域などの集団のなかでほとんどの人がワクチンを接種するなどして免疫を持つことで、一部の人が免疫を持っていなくても感染が広がらない状態になることを集団免疫といい、WHOの見解では「集団免疫」が成立するためには少なくとも人口の7割以上の人が接種を受けることが必要とされています。

新型コロナワクチンについては、厚生労働省のホームページに各ワクチンの情報や全国の副反応疑い報告の状況が掲載されております。市民の皆様は、ワクチンの効果および副反応を理解したうえで接種を受けていただきますようお願いいたします。

(Português)

Boa tarde a todos cidadão

A cidade de Hikone vem recomendando a vacinação contra covid 19 mas ela não é obrigatória. A decisão sobre se vacinar ou não é de livre e espontânea vontade de cada um. Também é necessário ter a compreensão sobre a eficácia da vacina e dos possíveis efeitos colateriais.

Gostaria de explicar sobre a vacina contra covid 19 de uma forma simples.

Como já deve ser do conhecimento de todos estamos utilizando a vacina da pfizer que é uma vacina de RNA mensageiro cujo objetivo é criar anticorpos contra vírus da covid 19.

O RNA mensageiro é uma substância genética. Ao ser inserida no organismo as células usam a informação genética para sintetizarem uma proteina específica do vírus (proteina spike) que vai estimular a resposta imunológica. Esses antígenos espalhados pela superfície das células acionam o sistema imunológico que passa a produzir os anticorpos para combater o novo coronavírus.

Não causará mudanças no seu código genético pois a informação genética inserida é decomposta. Além disso, como não é usado um vírus real não haverá perigo de ser infectado pela vacina contra covid.

O avanço da vacinação tem conseguido vários efeitos positivos como o da proteção individual, o de fazer com que a doença não evolua para quadros graves mesmo se infectando, o de interromper a transmissão dentro de um grupo populacional através da “imunidade de rebanho”.

Com relação a porcentagem de proteção contra a covid 19 a vacina da Pfizer oferece 95% e a Moderna 94.1%, além disso oferecem bons efeitos contra a evolução para quadros graves.

E segundo a Organização Mundial de Saúde, para se conseguir a “imunidade de rebanho ”seria necessário que 70% da população fosse vacinada

Maiores detalhes sobre a vacina e seus efeitos colateriais estão publicados no site do Ministério da Saúde, Trabalho e Bem-Estar do Japão.

Aos cidadãos de Hikone peço que antes de se vacinarem estejam cientes da eficácia e dos possíveis efeitos colateriais causados pela vacina.

(English)

Before you receive a Covid-19 jab : Facts about Covid-19 vaccine (side-effects)

 First, this is just a friendly reminder that the city of Hikone recommends its residents should get vaccinated, but receiving a Covid-19 shot is not mandatory. For this reason, all Covid-19 vaccine recipients are asked to gain a full understanding of the benefits and risks of Covid-19 vaccines beforehand and to get vaccinated of their own volition.

 The most commonly reported side effects after receiving the Pfizer-BioNTech vaccine are headache, joint pain, muscle pain, pain at the injection site, tiredness, chills, fever, etc. These side effects typically go away in a few days. Serious adverse events such as anaphylaxis and a sudden drop in blood pressure after the COVID-19 vaccination are rare, but may occur nonetheless.     

 As mRNA vaccines are a new type of vaccine, further research and close monitoring are needed to see if there are any unknown, long-term health problems caused by the vaccines. If you noticed any symptoms you are not sure about after your Covid-19 shot, immediately talk to your primary healthcare provider or a doctor who administered your shot.  

 The city of Hikone has received total 22 reports of side effects after Covid-19 vaccines from medical institutions and mass vaccination sites as of July 12. Most cases are an increase in blood pressure, feverishness, faintness, and pain/inflammation at the injection site. Please note that these vaccine recipients who experienced side effects completely recovered in a few days.     

 According to the results from clinical trials for Covid-19 vaccines conducted abroad, the most commonly reported side effect is pain at the injection site at 77.8%, followed by tiredness and headache at 41.5% and 34.5%, respectively.

 On top of this finding, side effects after your second shot may be more common and more pronounced than the ones you experienced after your first shot. After getting the first shot, your immune system learns to recognize and respond to an invader. Then, when you get the second shot, there are more immune cells ready and waiting to launch a much bigger assault in your immune system. This is why you may feel more side effects after the second dose. It is also said that side effects are higher among young people than elderly people due to their stronger immune responses.

 Individuals who are currently pregnant, breastfeeding, or planning to get pregnant can choose to receive COVID-19 vaccines authorized by the government. Getting a COVID-19 jab during pregnancy can protect you from severe illness from COVID-19. Therefore, the benefits of mRNA Covid-19 vaccines outweigh the health risks they may pose to these women.

 Based on the vaccine information and safety studies on use of Covid-19 vaccines derived from foreign sources, Covid-19 vaccines have been evaluated and defined as safe and effective. With that being said, the city still asks each vaccine recipient to understand the benefits and risks of Covid-19 vaccines in advance.

 Last but not least, you can find detailed information on Covid-19 vaccine makers and their vaccines as well as adverse events following the Covid-19 vaccines on the official website of the Ministry of Health, Labor and Welfare.

 

(中文)

新冠疫苗接种之前 ~希望大家提前了解这些状况(关于保护效力)~

 大家好!我是彦根市长的和田裕行。

 彦根市现在全力以赴地开展新冠肺炎疫苗接种工作,劝大家在自己愿意的状况下打疫苗针。但这并不是强制性的。

 请大家先了解预防接种的保护效力和副反应,然后,自己决定是否接种。

 接下来,我对新冠肺炎病毒疫苗做简单的说明。

 彦根市现在对居民使用的疫苗是辉瑞公司制造的mRNA疫苗。mRNA疫苗是利用遗传物质mRNA的疫苗。

 新冠病毒要感染至细胞的时候需要棘突蛋白质,mRNA是为形成这个棘突蛋白质而需要的遗传信息,将此mRNA摄取到体内,然后,利用这个遗传信息在人体细胞内形成棘突蛋白质,促使体内产生攻击这些棘突蛋白质的抗体。

 mRNA所携带的遗传信息,一旦进入到体内就被分解,不可能改变您自己原来持有的遗传信息。再加上,这个疫苗没使用真正的病毒,所以,接种也不会被病毒感染。

 一般来说,疫苗会起的作用有三种,一则是防止感染的“对病毒感染的保护效力”,二则是即使被感染也可以防止重症化的“重症化预防效果”,三则是由于社会上的众多人产生病毒抗体而全社会可受保护的“群体免疫效果”。

 对预防发生症状的效果而言,辉瑞公司制造的疫苗达95%,莫徳纳公司制造的疫苗达94.1%。除此之外,对重症化预防效果也表示高效力。

 所谓“群体免疫”是指由于同一个国家及地区等内几乎所有人透过接种等方法产生免疫力,而即便有一部分的人未有免疫力,传染病也不扩散的状态。据WHO的见解,至少有人口的70%以上接种才能形成“群体免疫”。

 关于新冠肺炎疫苗接种,我国厚生劳动省官网上也介绍各家制药厂的疫苗详情以及日本国内发生的副反应症状。希望大家提前了解接种有何优点和缺点,自己决定是否接种。

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健康推進課 新型コロナウイルスワクチン接種対策室

電話:0749-24-0816

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