Are there different types of influenza viruses?

Jan 22, 2018 ... Pandemic flu can happen when an animal influenza A virus (eg bird, pig) changes or mixes with a human flu virus to create a new flu virus strain that can ... Four themes were identified as causes of vaccine hesitancy comprising: concerns over safety, lack of trust, lack of need for vaccination and cultural reasons. Jan 14, 2025 ... It's a very rare event, but we know that reassortment has resulted in the influenza viruses that have caused the last three human pandemics. Influenza (flu) is a highly contagious viral infection of the respiratory tract that can cause severe illness and life-threatening complications (including ... Influenza (or “flu”) is a respiratory infection caused by influenza virus. Influenza outbreaks happen every year, usually between November and April. This fact sheet will look at zoonotic influenza (human infections) caused by influenza viruses of avian origin. Since 1997, 2,723 cases of zoonotic human ... The flu is an infection of the nose, throat, and lungs. It spreads easily from person to person. This article discusses influenza types A and B. Nov 28, 2017 ... Humans naturally infected with rhinovirus, which is the cause of the common cold, or the flu virus, which causes influenza, do not make good ... Jan 28, 2025 ... Symptoms of the flu such as a sore throat and a runny or stuffy nose are common. You may also get these symptoms with other illness such as a ... What is the flu? · How does the flu spread? · Does your child need a flu vaccine every year? · Are some children more likely to have serious health problems caused ...