Coronavirus vaccine and Delta variant updates for 7-29-2021

<p>This is Vaccine 411, the latest coronavirus vaccine information for July 29th, 2021.</p><p>&nbsp;</p><p>After the CDC changed its guidance for even the vaccinated to go back to wearing masks indoors in certain areas, mask rules across the nation reacted in a range of ways. That includes cities, states, schools, and businesses. Nevada and Kansas City swiftly re-imposed indoor masking. But governors in Arizona, Pennsylvania, and South Carolina are resisting. Ford is reinstating masking at facilities in Missouri and Florida, while Apple and Google postponed a return to the office. Google will eventually mandate vaccination for all staff. The main result of the ever-changing advice, Americans plunged right back into emotionally charged debates.</p><p>&nbsp;</p><p>The CDC said not only do you have to go back to wearing a mask if you’ve been vaccinated, you also should get tested if you’ve been exposed to the virus even if you’re vaccinated and not showing any symptoms. It’s yet another change in guidance that has many people asking, what good is being vaccinated? The answer, of course, is lower chance of infection and lower seriousness of illness if infected. But the CDC is saying new data suggests "vaccinated people infected by Delta may still carry large amounts of the virus and transmit it to others." </p><p>&nbsp;</p><p>According to Los Angeles County’s Public Health Director, 26% of new cases there are from fully vaccinated people. That’s up from 20% in June. But health officials continue to say that’s totally expected and nothing to get alarmed about. And we say again, the vaccine reduces the severity of cases in those who do get a breakthrough infection. </p><p>&nbsp;</p><p>The Lollapalooza music festival begins today in Chicago’s Grant Park. But those wanting to attend will be required to show proof of vaccination or a negative test within the last three days. The festival is expected to be back at full capacity, with roughly 100,000 daily attendees over four days. </p><p>&nbsp;</p><p>In the United States c