Related Experiment Video

Updated: May 2, 2026

A Luciferase-fluorescent Reporter Influenza Virus for Live Imaging and Quantification of Viral Infection
05:21

A Luciferase-fluorescent Reporter Influenza Virus for Live Imaging and Quantification of Viral Infection

Published on: August 14, 2019

28.9K

Update: influenza activity - United States, September 29, 2013-February 8, 2014

Carmen S Arriola, Lynnette Brammer, Scott Epperson

    MMWR. Morbidity and Mortality Weekly Report
    |February 21, 2014
    PubMed

    Insights

    Influenza activity surged in the US from mid-November to February 2014, primarily driven by influenza A (H1N1)pdm09 viruses. Other influenza types were detected infrequently during this period.

    Area of Science:

    • Epidemiology
    • Virology
    • Public Health

    Background:

    • Influenza surveillance is crucial for monitoring seasonal and pandemic threats.
    • Understanding the predominant circulating strains informs public health interventions and vaccine strategies.

    Purpose of the Study:

    • To summarize United States influenza activity from September 29, 2013, to February 8, 2014.
    • To identify the predominant influenza virus types and subtypes circulating during the 2013-2014 season.

    Main Methods:

    • Utilized national influenza surveillance data collected through the U.S. Influenza Sentinel Provider Surveillance Network.
    • Conducted virologic testing to identify influenza virus types and subtypes.

    Main Results:

    • Influenza activity increased significantly in mid-November 2013 and remained elevated through February 8, 2014.
    • Influenza A (H1N1)pdm09 (pH1N1) viruses were the predominant circulating strains.
    • Influenza B and A (H3N2) viruses were detected infrequently.

    Conclusions:

    • The 2013-2014 influenza season was characterized by the dominance of influenza A (H1N1)pdm09 viruses.
    • Continued surveillance is essential for tracking influenza trends and informing public health responses.

    More Related Videos

    Nasal Wipes for Influenza A Virus Detection and Isolation from Swine05:59

    Nasal Wipes for Influenza A Virus Detection and Isolation from Swine

    Published on: December 4, 2015

    8.9K
    Rapid Molecular Detection and Differentiation of Influenza Viruses A and B05:38

    Rapid Molecular Detection and Differentiation of Influenza Viruses A and B

    Published on: January 30, 2017

    15.2K

    Related Concept Videos

    Influenza01:27

    Influenza

    Influenza is an acute, highly communicable viral disease that affects the respiratory tract and is responsible for seasonal epidemics worldwide. Influenza A is the most prevalent type associated with widespread outbreaks and is subtyped based on two surface glycoproteins: hemagglutinin (H) and neuraminidase (N), as in H1N1. These glycoproteins are essential for viral infectivity, transmission, and immune recognition. Transmission occurs primarily through respiratory droplets and contaminated...
    87
    Vaccinations01:51

    Vaccinations

    Overview
    44.1K
    Infectious Diseases and Their Occurrence01:28

    Infectious Diseases and Their Occurrence

    Infectious diseases appear in populations through various transmission patterns, influenced by pathogen characteristics, population immunity, environmental conditions, and social behavior. Understanding these patterns is essential for effective public health surveillance and intervention. These categories—sporadic, outbreak, epidemic, pandemic, and endemic—help frame the nature and scope of disease events.Sporadic diseases occur irregularly and infrequently, without a predictable...
    94
    Inhibitors of Viral Protein Synthesis01:30

    Inhibitors of Viral Protein Synthesis

    Protein synthesis is indispensable for viral replication, as viruses lack the cellular machinery required for this process and must hijack the host's translational apparatus. In response, host cells deploy a critical innate immune defense involving interferons, specialized cytokines that play a central role in inhibiting viral propagation.Upon viral detection, infected cells release interferons that bind to receptors on adjacent uninfected cells, activating the JAK-STAT signaling pathway and...
    58
    Acute Pharyngitis01:30

    Acute Pharyngitis

    Introduction
    Acute pharyngitis is the inflammation of the back of the throat (pharynx), commonly resulting in a sore throat. It is a frequently encountered condition that prompts individuals to seek medical advice.
    Classification
    Acute pharyngitis can be categorized based on its underlying cause:
    6.6K
    Leaky Scanning02:28

    Leaky Scanning

    During most eukaryotic translation processes, the small 40S ribosome subunit scans an mRNA from its 5' end until it encounters the first start AUG codon. The large 60S ribosomal subunit then joins the smaller one to initiate protein synthesis. The location of the translation initiation is largely determined by the nucleotides near the start codon as there may be multiple translation initiation sites present on the mRNA.  Marilyn Kozak discovered that the sequence RCCAUGG (where R...
    4.5K