What are the lessons learned from past influenza pandemics that can inform our response to future respiratory virus threats?

The flu is primarily transmitted from person to person. If someone with the flu sneezes, coughs, or talks, droplets from them become airborne. If these droplets ... What some people call the stomach flu is actually another virus or bacteria that causes gastrointestinal illness. Influenza is a respiratory illness that should ... Oct 18, 2018 ... What is keto flu? The so-called keto flu is a group of symptoms that may appear two to seven days after starting a ketogenic diet. · What causes ... Jan 15, 2019 ... Colds and the flu are both caused by viruses, but not the same virus. They have similar symptoms and both affect the respiratory system. Feb 28, 2025 ... Seasonal influenza (the flu) is an acute respiratory infection caused by influenza viruses. It is common in all parts of the world. Most people recover without ... Feb 10, 2025 ... What causes body aches? ... Viral infections, such as the flu, COVID-19 or common cold, and some bacterial infections can cause widespread body ... In this section · What is Influenza? · Influenza Symptoms · What Causes Influenza? · Influenza Testing and Diagnosis · Influenza Treatment ... Sep 19, 2024 ... In infants, RSV can cause pneumonia or bronchiolitis, and people over the age of 50 or those with heart or lung disease are also at risk for ... Mar 21, 2025 ... The most severe influenza outbreak of the 20th century and, in terms of total numbers of deaths, among the most devastating pandemics in human history. Oct 1, 2006 ... Colds and the flu cause many of the same symptoms. But colds are usually mild, while the flu tends to be more severe.