The California Department of Public Health now defines a “close contact” as someone who shares the “same indoor airspace” with an infected person for a cumulative total of 15 minutes or more over a 24-hour period. Health officials in California expanded the definition of a “close contact” to more accurately acknowledge that COVID-19 is an airborne disease, as many infectious disease experts have insisted since the first few months of the pandemic, and not one spread by respiratory droplets. California updates definition of a “close contact” to acknowledge COVID is airborne
The current vaccines retain strong protection against hospitalization and death, but their ability to block infection dropped markedly when omicron appeared. A decision is expected from the FDA in the coming days following a Tuesday meeting in which outside advisers recommended modifying the vaccines to better target the omicron variant. The first shots would be delivered by early fall, pending a decision by the Food and Drug Administration to authorize new versions of the shots. Federal officials said the purchase agreement includes the option to purchase a total of 300 million doses, including a mix of doses for both adults and children.
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The $3.2 billion deal announced by the Biden administration comes as federal scientists consider how to update the vaccines to better protect Americans from the rapidly evolving virus. health officials said Wednesday they have agreed to purchase another 105 million doses of Pfizer’s COVID-19 vaccine in anticipation of a fall booster campaign, the Associated Press reports. buys 105 million COVID vaccine doses for fall campaign
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