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The Janssen COVID‑19 vaccine is used to provide protection against infection by the SARS-CoV-2 virus in order to prevent COVID‑19 in people aged eighteen years and older. The vaccine is given by intramuscular injection into the deltoid muscle. The initial course consists of a single dose.
On 23 August 2021, the Pfizer–BioNTech vaccine became the first COVID-19 vaccine to be approved in the US by the Food and Drug Administration (FDA). [29] [32] [66] The logistics of distributing and storing the vaccine present significant challenges due to the requirement for its storage at extremely low temperatures.
Vaping-associated pulmonary injury (VAPI), also known as vaping-associated lung injury (VALI) or e-cigarette, or vaping, product use associated lung injury (E/VALI), is an umbrella term, used to describe lung diseases associated with the use of vaping products that can be severe and life-threatening.
The change allows the virus to use the Asian tiger mosquito (an invasive species) as a vector in addition to the more strictly tropical main vector, Aedes aegypti. Enhanced transmission of Chikungunya virus by A. albopictus could mean an increased risk for outbreaks in other areas where the Asian tiger mosquito is present.
The HPV vaccines are based on hollow virus-like particles (VLPs) assembled from recombinant HPV coat proteins. The natural virus capsid is composed of two proteins, L1 and L2, but vaccines only contain L1. Gardasil contains inactive L1 proteins from four different HPV strains: 6, 11, 16, and 18, synthesized in the yeast Saccharomyces cerevisiae ...
Graphic from the World Health Organization describing the main ingredients typically in vaccines A vaccine dose contains many ingredients (stabilizers, adjuvants, residual inactivating ingredients, residual cell culture materials, residual antibiotics and preservatives) very little of which is the active ingredient, the immunogen. A single dose ...
These drugs prevent viruses from reproducing by inhibiting essential stages of the virus's replication cycle in infected cells. Antivirals are used to treat HIV, hepatitis B, hepatitis C, influenza, herpes viruses including varicella zoster virus, cytomegalovirus and Epstein–Barr virus. With each virus, some strains have become resistant to ...
Presidency of Joe Biden January 20, 2021 – present Cabinet See list Party Democratic Election 2020 Seat White House ← Donald Trump Seal of the president Official website This article is part of a series about Joe Biden Political positions Electoral history Early life and career Eponyms Family Honors Public image U.S. Senator from Delaware Judiciary Committee Bork hearings Thomas hearings ...