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COVID-19: What s in vaccines? It s mostly water, says global alliance

Vaccines contain “active ingredients”. This usually refers to either “killed” (inactivated) whole virus, or components of a target virus (known as “attenuated” vaccine). There’s a new vaccine type, called mRNA vaccines. But they have the same objective: give them through a shot in the arm (intramuscular) and trigger our body’s immune response to antigens viruses, bacteria and other pathogens, or parts of them. To manufacture vaccines in a safe and effective way, and in order for them to work well, it’s important that they also contain other key ingredients. These are also known as excipients . With the current pandemic, the role of vaccines has come to the fore. We explore some numbers:

US loosens restrictions on export of Covid-19 vaccine raw materials to India

NEW DELHI - Caving under increasing public criticism for failing to act and help India fight a devastating second Covid-19 wave, the United States rolled out a series of belated supportive measures, including sending over raw material required for the production of Covid-19 vaccines in India. A White House readout of a phone call on Monday (April 26) between US President Joe Biden and Indian Prime Minister Narendra Modi said the US has begun providing a range of emergency assistance, including oxygen-related supplies, vaccine materials, and therapeutics. The export of these materials, such as single-use bioreactor bags and filters, was severely curtailed after the Biden administration invoked powers under the Defence Production Act (DPA), a Korean War-era law, in January to ensure a sustainable public health supply chain . It was done to bolster production of vaccines and other items such as testing kits and protective equipment in the US.

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