A timeline of 2021′s top COVID-19 developments A year ago, the vaccine was newly available. Now, more than 1.3 million are fully vaccinated in Bexar County
2021 COVID-19 timeline (KSAT)
Read more stories wrapping 2021 here .
The year is ending as it began — with a spike in COVID-19 cases.
That’s not to say that there wasn’t progress made against the coronavirus in 2021, because there was. And so far, the end-of-December spike shows hundreds of new cases a day, not thousands like last January.
The start of 2021 focused on getting vaccines to healthcare workers, those 65 years and older and people with qualifying health conditions as COVID-19 hospitalizations reached an all-time high in Bexar County.
By the end of March, cases were down drastically and the vaccine was available to all adults in Texas. But, just as we got our hopes up for a “normal” summer, the delta variant hit. That caused cases to climb again, peaking in mid-August just as kids headed back to school.
This month, it’s the omicron variant that’s causing cases to rise.
There’s hope though, as the year comes to a close, with vaccines for children, boosters and newly approved treatments — all things that were unavailable a year ago.
Last January, only a few thousand people had received a single vaccine in Bexar County, Now, more than 1.3 million are fully vaccinated here, city data shows .
Here’s a look back at the top COVID-19 headlines in 2021 to see how far we’ve come in the fight against COVID-19:
Copyright 2021 by KSAT - All rights reserved.
Here’s what the KSAT newsroom listened to in 2025 ▶ 0:56
Here’s what the KSAT newsroom listened to in 2025
‘I wouldn’t have left you’: Good Samaritan left critically injured after Universal City hit-and-run ▶ 0:32
‘I wouldn’t have left you’: Good Samaritan left critically injured after Universal City hit-and-run
Amazon’s Prime Air drone deliveries are in full swing across San Antonio ▶ 1:26
Amazon’s Prime Air drone deliveries are in full swing across San Antonio
The Running Event kicks off downtown ahead of inaugural San Antonio Marathon_Trim ▶ 1:03
The Running Event kicks off downtown ahead of inaugural San Antonio Marathon_Trim
Castle Hills nursing home resident spreads warmth with handmade hats for San Antonio’s community ▶ 1:52
Castle Hills nursing home resident spreads warmth with handmade hats for San Antonio’s community
San Antonio could test drive lower speed limits, but funding issues may push it down the road ▶ 0:57
San Antonio could test drive lower speed limits, but funding issues may push it down the road
Body cam captures LOPD officer making false claims about business owner months before owner’s arrest ▶ 1:03
Body cam captures LOPD officer making false claims about business owner months before owner’s arrest
Road closures to be aware of during the San Antonio Marathon ▶ 1:55
Road closures to be aware of during the San Antonio Marathon
Mother of Texas A&M student demands answers after daughter’s fatal fall from high-rise in Austin ▶ 2:07
Mother of Texas A&M student demands answers after daughter’s fatal fall from high-rise in Austin
Do police have to wait 24 hours to declare an adult missing? ▶ 2:20
Do police have to wait 24 hours to declare an adult missing?
Harlandale ISD teacher arrested, accused of sexual assault of child, SAPD says ▶ 1:05
Harlandale ISD teacher arrested, accused of sexual assault of child, SAPD says
Mother questions circumstances surrounding death of daughter, a Texas A&M student, in Austin ▶ 1:03
Mother questions circumstances surrounding death of daughter, a Texas A&M student, in Austin
Ousted Alamo Trust president questions timing of resignation request ▶ 1:13
Ousted Alamo Trust president questions timing of resignation request
Prepare to pay a $45 fee to fly if you don't have a Real ID ▶ 0:35
Prepare to pay a $45 fee to fly if you don't have a Real ID
Some UTSA students forced to move dorm rooms as school complies with state’s ‘bathroom bill’ ▶ 1:08
Some UTSA students forced to move dorm rooms as school complies with state’s ‘bathroom bill’
How to share your San Antonio Marathon pics & videos to KSAT Connect ▶ 0:29
How to share your San Antonio Marathon pics & videos to KSAT Connect
How Black Friday can make the economy seem healthier than it is ▶ 1:18
How Black Friday can make the economy seem healthier than it is
Interactive map shows car burglaries at popular San Antonio shopping centers ▶ 0:32
Interactive map shows car burglaries at popular San Antonio shopping centers
Experience San Antonio’s newest drive-thru Christmas light display “The Light Park” at Wolff Stadium ▶ 1:04
Experience San Antonio’s newest drive-thru Christmas light display “The Light Park” at Wolff Stadium
1-on-1 with Colin Allred, candidate for US Senate ▶ 0:41
1-on-1 with Colin Allred, candidate for US Senate
James Talarico shares his favorite things about Texas ▶ 1:48
James Talarico shares his favorite things about Texas
David Elder tries entrees, drinks and desserts at Salsita at the Rim ▶ 1:29
David Elder tries entrees, drinks and desserts at Salsita at the Rim
David Elder tries the Tres Leches Strawberry Matcha Latte from La Panaderia ▶ 0:54
David Elder tries the Tres Leches Strawberry Matcha Latte from La Panaderia
David Elder tries Snow Island in San Antonio ▶ 2:51
David Elder tries Snow Island in San Antonio
Surf & Turf at Sea Island Shrimp House ▶ 0:39
Surf & Turf at Sea Island Shrimp House
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