Negative Sense ~ The Flu
There are four types of influenza virus, termed influenza viruses A, B, C, and D. Aquatic birds are the primary source of Influenza A virus (IAV), which is also widespread in various mammals, including humans and pigs. Influenza B virus (IBV) and Influenza C virus (ICV) primarily infect humans, and Influenza D virus (IDV) is found in cattle and pigs. IAV and IBV circulate in humans and cause seasonal epidemics, and ICV causes a mild infection, primarily in children. IDV can infect humans but is not known to cause illness. In humans, influenza viruses are primarily transmitted through respiratory droplets produced from coughing and sneezing. Transmission through aerosols and intermediate objects and surfaces contaminated by the virus also occur.
Frequent hand washing and covering one's mouth and nose when coughing and sneezing reduce transmission. Annual vaccination can help to provide protection against influenza. Influenza viruses, particularly IAV, evolve quickly, so flu vaccines are updated regularly to match which influenza strains are in circulation. Vaccines currently in use provide protection against IAV subtypes H1N1 and H3N2 and one or two IBV subtypes. Influenza infection is diagnosed with laboratory methods such as antibody or antigen tests and a polymerase chain reaction (PCR) to identify viral nucleic acid. The disease can be treated with supportive measures and, in severe cases, with antiviral drugs such as oseltamivir. In healthy individuals, influenza is typically self-limiting and rarely fatal, but it can be deadly in high-risk groups.
-
29:36
Science & Futurism with Isaac Arthur
16 hours agoClearing Space Debris
22.9K11 -
6:55
Chrissy Clark
6 hours agoLGBT Activists Want Katy Perry To Stop THIS?!
17.2K18 -
16:27
justintech
10 hours agoBest Gaming PC 2024 For Every Budget!
20K2 -
1:22:40
Crime Circus
11 hours agoBad Boy sneaks KNIFE into interrogation!!
24.2K5 -
2:06:10
Laura Loomer
5 hours agoEP44: TRUMP ON TRIAL: SCOTUS Hears Presidential Immunity Arguments Ahead of 2024 Election
34.9K34 -
3:04:11
Melonie Mac
5 hours agoGo Boom Live Ep 1: Stellar Blade and More!
24.9K13 -
3:59:31
barstoolsports
13 hours ago2024 En Eff El Draft Presented by DraftKings
33.5K2 -
1:27:40
Kim Iversen
7 hours agoSHOCKING IDF LINK EXPOSED: Campus Riot Police Trained In Israel | Update To Julian Assange CIA Spying Case
40.2K113 -
1:01:33
The Anthony Rogers Show
15 hours agoEpisode 300 - Near Death Experiences
9.24K1 -
1:15:47
Glenn Greenwald
8 hours agoCampus Crackdown on Protests, PLUS: Interview with Columbia Student Protesters | SYSTEM UPDATE #261
48K171