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Concerns about thiomersal and vaccines are commonly expressed by anti-vaccine activists. Claims relating to the safety of thiomersal, a mercury-based preservative used in vaccines, are refuted, but still subject to fearmongering, notably claims it could cause neurological disorders such as autism, leading to its removal from most vaccines in the US childhood schedule. [1]
Vaccine contamination with Simian vacuolating virus 40, known as SV40 occurred in the United States and other countries between 1955 and 1961. SV40 is a monkey virus that has the potential to cause cancer in animals and humans, although this is considered very unlikely and there have been no known human cases. [ 1 ]
The following findings are required, by section 202 of that Act, for substances to be placed in this schedule: The drug or other substance has a high potential for abuse. The drug or other substance has a currently accepted medical use in treatment in the United States or a currently accepted medical use with severe restrictions.
The data are stored electronically by the CDC in the Vaccine Safety Datalink (VSD). VAERS was established in 1990 and is managed jointly by the FDA and the CDC. [5] It is meant to act as a sort of "early warning system" [6] —a way for physicians and researchers to identify possible unforeseen reactions or side effects of vaccination for ...
The system has 2 CRISPR loci and 9 Cas genes. It seems to be homologous to the I-F system found in Yersinia pestis. Moreover, like the bacterial CRISPR-Cas system, ICP1 CRISPR-Cas can acquire new sequences, which allows phage and host to co-evolve. [177] [178] Certain archaeal viruses were shown to carry mini-CRISPR arrays containing one or two ...
(Reuters) -A panel of outside experts to the U.S. Centers for Disease Control and Prevention has voted unanimously to recommend the use of updated COVID-19 vaccines, as authorized or approved by ...
A synthetic vaccine is a vaccine consisting mainly of synthetic peptides, carbohydrates, or antigens. They are usually considered to be safer than vaccines from bacterial cultures. Creating vaccines synthetically has the ability to increase the speed of production. This is especially important in the event of a pandemic.
In vaccine development, gain-of-function research is conducted in the hope of gaining a head start on a virus and being able to develop a vaccine or therapeutic before it emerges. [4] The term "gain of function" is sometimes applied more narrowly to refer to "research which could enable a pandemic-potential pathogen to replicate more quickly or ...