No, “HIV insertions” were not identified in the 2019 coronavirus, contrary to claims based on questionable bioinformatics study

The claim is based on a study which compared extremely short gene and protein sequences between the 2019 novel coronavirus and HIV, a practice likely to give false positives. The study’s authors also overlooked checking for potential similarities between 2019-nCoV and other organisms. As it turned out, similar regions could also be found in many other organisms, not just HIV, meaning that these similarities are not unique to 2019-nCoV and HIV.

Mike Adams falsely claims cancer genes and “entire genetic code” are found in vaccines, based on unverified report

While certain vaccines are produced using fetal tissue cell lines, these cells are not included with the vaccine and regulations for vaccine safety ensure that only trace amounts of fragmented DNA remain in vaccines. It is not possible for vaccines to contain the entire genetic code for a human or cancer genes. Furthermore, people undergo much higher levels of exposure to foreign DNA and/or cells in their everyday lives (e.g. through food) than they do through vaccines, so there is no cause for concern about the minuscule level of DNA fragments in vaccines.

Vaccination does not weaken the immune system against natural infection

Vaccination protects people from natural infection mainly by stimulating the humoral immune response and establishing immunological memory against a specific pathogen. This enables the body to respond swiftly and effectively upon encountering a natural infection by that pathogen in future. However, this does not come at the expense of cell-mediated immunity, which remains robust and active after vaccination.