Influenza vaccine

A flu shot is a vaccine for preventing influenza. Influenza, or the flu, is a seasonal virus that affects the respiratory system. Vaccination is important for people at risk of severe illness from the flu. Flu shots can have some mild side effects, such as pain and bruising at the injection site. However, getting the flu vaccine every year is the best option to prevent flu from spreading and causing severe illness. In this article, we discuss the benefits and risks of flu shots. Share on Pinterest PeopleImages/Getty Images Flu shots are very safe. Over the past Before The FDA also ensure that all vaccines contain substances that comply with their strict The Centers for Disease Control and Prevention (CDC) and the FDA continuously monitor the safety of flu shots. They use the The flu can • older adults • young children • pregnant women • people with certain underlying health Flu vaccinations are vital for anyone at risk of severe complications. Other benefits of flu shots include: • reducing the severity of symptoms in those who do get the flu, potentially preventing the symptoms from disrupting daily life • lowering the risk of passing the flu onto high risk individuals • reducing the risk of • preventing The • 6.16 million illnesses • 3.18 million medical visits • 90,904 hospitalizations • 5,747 deaths Flu shots also allow the development of Flu shots are, therefore, important for protecting others from severe illnesses. Some possible downsides to flu shots include: • onl...

This year's annual flu shot will provide protection against four of the influenza viruses expected to be most common during this flu season. High-dose flu vaccines will be available for adults age 65 and older. Influenza, often called the flu, is an infection of the nose, throat and lungs, also called the respiratory system. Influenza can cause serious complications, especially in children age 2 or younger, pregnant people, adults over age 65 and people with certain medical conditions. By some estimates, the flu causes more than 400,000 hospital stays and 50,000 deaths every year. Getting an influenza vaccine — though not 100% effective — is the best way to prevent the misery of the flu and its complications. The Centers for Disease Control and Prevention (CDC) recommends annual flu vaccination for everyone age 6 months or older. The flu vaccine can lower your risk of getting the flu. It also can lower the risk of having serious illness from the flu and needing to stay in the hospital. Here are the answers to common questions about flu shots: Private manufacturers make the flu vaccine. It takes about six months. The availability of the flu vaccine depends on when production is completed. But generally, shipments begin sometime in August each year in the United States. Health care providers may begin vaccinating people as soon as the flu vaccine is available in their areas. It takes up to two weeks to build immunity after a flu shot. But you can benefit from the vaccine eve...

SangJoon Lee 1 and Jin-Hyeob Ryu 2,3* • 1Department of Infection Biology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan • 2BIORCHESTRA Co., Ltd, Daejeon, South Korea • 3BIORCHESTRA Co., Ltd, Cambridge, MA, United States The innate immune system represents the first line of defense against influenza viruses, which cause severe inflammation of the respiratory tract and are responsible for more than 650,000 deaths annually worldwide. mRNA vaccines are promising alternatives to traditional vaccine approaches due to their safe dosing, low-cost manufacturing, rapid development capability, and high efficacy. In this review, we provide our current understanding of the innate immune response that uses pattern recognition receptors to detect and respond to mRNA vaccination. We also provide an overview of mRNA vaccines, and discuss the future directions and challenges in advancing this promising therapeutic approach. Introduction The innate immune system serves as the first line of host immune response against pathogens but also virus-based vaccines containing either attenuated or inactivated viruses to prevent infectious diseases. After vaccination, the innate immune system identifies and removes vaccinated cells while coordinating the adaptive immune responses in the form of antigen-specific reactions, thereby sustaining long-term protection from the viral infection. To rapidly detect and defend against the various viruses, the immune cells have evolved to acquire mult...

Influenza virus vaccine (nasal) Generic name: influenza virus vaccine (nasal) [ in-floo-ENZ-a-VYE-rus-VAK-seen] Brand names: FluMist Quadrivalent 2021-2022, FluMist 2013-2014, FluMist 2014-2015, FluMist 2015-2016, FluMist 2016-2017, FluMist 2018-2019, FluMist Quadrivalent 2019-2020, FluMist Quadrivalent 2020-2021, FluMist Quadrivalent 2022-2023, FluMist Quadrivalent 2023-2024 Dosage form: nasal spray (quadrivalent) Drug class: • • • • • • What is influenza virus nasal vaccine? Influenza causes thousands of deaths each year, and hundreds of thousands of hospitalizations. Influenza is most dangerous in children, pregnant women, older adults, and people with weak immune systems or health problems such as diabetes, heart disease, or Influenza virus nasal vaccine (nasal flu vaccine) is for use in people 2 years to 49 years old, to prevent Influenza virus vaccine is redeveloped each year to contain specific strains of flu virus that are recommended by public health officials for that year. Nasal influenza virus vaccine is made from "live viruses." Influenza virus vaccine is also available as an injection (flu shot) which is a "killed virus" vaccine. This medication guide addresses only the nasal form of this vaccine. Like any vaccine, nasal flu vaccine may not provide protection from disease in every person. Before taking this medicine You should not receive this vaccine if you are allergic to eggs, or if you have: • a history of severe allergic reaction to any flu vaccine; or •...

In the United States, medical organizations — from the Yet only about half of American adults typically get an annual flu vaccine, according to the Among the reasons that people don’t get vaccinated for the flu is an unfounded fear that the shot might actually give them the flu, says “This is a Though the nasal mist version of the flu vaccine does contain live viruses, they are so weakened (attenuated) that the spray form will not cause illness, states the Side Effects of the Flu Shot Are Nothing Compared With Flu Sickness Many people are also concerned that the possible side effects of the “The potential risks of a severe case of Some people equate the flu with having a bad cold. While Some people who get the flu will develop complications such as “Even if you’ve been vaccinated and still get the flu, you are less likely to die, be hospitalized, or be admitted to the ICU,” Horney says. While incidence of the flu was unusually low during the early part of the What Are the Main Side Effects of the Flu Shot? • Soreness, redness, or swelling where the shot was given • Headache • Fever • Nausea • Muscle aches If these reactions occur, they usually begin soon after vaccination and last one to two days. “You can have a sore arm, feel a little achy for a day or two, and maybe have a low-grade fever as your immune system gets turned on,” says “If so, take some Another occasional reaction to be aware of is fainting; a handful of people may temporarily lose consciousness after getti...