Alexander Tin Profile picture
Reporting for @CBSNews in D.C. on federal public health. Raised in sunny Nevada. Email is TinA@CBSNews.com, call/text/signal at 202-381-7107 or 202-817-6133
2 subscribers
Mar 29 5 tweets 3 min read
From an @HHSGov spokesperson on top vaccines official being ousted:

"If Peter Marks does not want to get behind restoring science to its golden standard and promoting radical transparency, then he has no place at @US_FDA"

tinalexander.github.io/notes/2025/03#…A screenshot of text that reads in part: "Source: emailed statement Attribution: Health and Human Services spokesperson Date: received March 28, 2025 If Peter Marks does not want to get behind restoring science to its golden standard and promoting radical transparency, then he has no place at FDA under the strong leadership of Secretary Kennedy." From resignation letter by Dr Peter Marks to @US_FDA's acting commissioner:

"has become clear that truth and transparency are not desired by the Secretary, but rather he wishes subservient confirmation of his misinformation and lies"

cbsnews.com/news/fda-top-v…ned, these treatments have the potential to transform human health over the coming years. Over the past 13 years I have done my best to ensure that we efficiently and effectively applied the best available science to benefit public health. As you are aware, I was willing to work to address the Secretary’s concerns regarding vaccine safety and transparency by hearing from the public and implementing a variety of different public meetings and engagements with the National Academy of Sciences, Engineering, and Medicine. However, it has become clear that truth and transparency are not desired b...
Nov 15, 2024 12 tweets 7 min read
Ahead of @realDonaldTrump picking @RobertKennedyJr to head @HHSGov, we took a look at their "Make America Healthy Again" platform



Here's a thread with just some of the highlights from our article on what Kennedy has proposed so far...cbsnews.com/news/trump-rob… All of Kennedy's proposals stem from one common thread:

that Americans have been "mass poisoned by big pharma and big food"

and that he thinks federal agencies have failed to stop it he says Trump asked him to show "measurable results" within two years

tinalexander.github.io/notes/2024/mah…A screenshot of text that reads in part: "[00:04:30] At this point we are exploring a bunch of different structures that Trump administration and the Trump team has been very, very accommodating to give me what I want. And what I want to do is what President Trump asked me to do, which is three things. One to end the corruption and the corporate capture of these agencies, so that they’re serving public health interests rather than the mercantile interests of the pharmaceutical companies. Number two, to restore the tradition in these agencies of gold standard, empirically based evidence...
Sep 19, 2024 4 tweets 3 min read
This year's whooping cough surge is still accelerating, as schools resume

@CDCgov tallies 291 cases this week, most in a single week for nearly a decade

We're now up to 14,569 so far this year, above ~10K by this time in 2019

data.cdc.gov/NNDSS/NNDSS-We…

A screenshot of a combination line and bar chart titled "Pertussis in U.S. residents, 2024 From the Centers for Disease Control and Prevention's National Notifiable Diseases Surveillance System" While unvaxxed young kids remain at highest risk

Officials have been warning of whooping cough resurgence in breakthrough cases from older kids and adults

New York , which has most reported this week, told us this year that 40% of cases in 15-19 yrs

tinalexander.github.io/notes/2024/09#…
A screenshot of text that reads in part: "Please see the following breakdown of cases by age in New York State (excluding New York City) from our communicable disease system, through the Centers for Disease Control and Prevention’s Morbidity and Mortality Weekly Reports (latest data available from here.) Forty percent of the pertussis cases this year in New York State (excluding New York City) have occurred among individuals 15-19 years of age. The Department has not identified any pediatric pertussis-related deaths this year. Pertussis cases, New York State, excluding New York City, W...
Sep 12, 2024 4 tweets 3 min read
New from @CDCgov today on bird flu case in Missouri

- hospitalized "related to" underlying conditions
- "not severely ill" or in ICU
- "closely related" to H5 in dairy cows
- "no additional cases" identified

tinalexander.github.io/notes/2024/09#…

A screenshot of text that reads in part: "Nirav Shah, CDC [00:07:05] The individual, who had significant underlying medical conditions, presented with acute symptoms of chest pain, nausea, vomiting, diarrhea, and weakness, and was hospitalized for reasons related to those underlying medical conditions. The individual was not severely ill, nor were they in the ICU. They were treated with antiviral medications, subsequently discharged and have recovered. … Nirav Shah, CDC [00:08:43] Our investigation is looking to other aspects of this case. For example, characterizing the virus’s geneti... @CDCgov's @nirav_uscdc cited patient confidentiality for vague explanation of why patient hospitalized

"symptoms that are present here were perhaps caused by other underlying medical conditions"

"this is not a new presentation of the flu"

tinalexander.github.io/notes/2024/09#…
A screenshot of text that reads in part: "Nirav Shah, CDC [00:26:45] No, this is not a situation where we think that their influenza manifested in these particular symptoms. However, the symptoms that are present here were perhaps caused by other underlying medical conditions. And then upon evaluation by medical personnel, became apparent that influenza and respiratory testing was also warranted. So this is not a new presentation of the flu. Those that I noted, the chest pain, the nausea, vomiting and diarrhea, which can be caused by any type of respiratory illness, were probably more ...
Jul 17, 2024 4 tweets 3 min read
At least five have caught bird flu, after working on culling infected poultry at Colorado farm

A reminder it's possible we could see more exposed

@USDA told reporters this week that depopulation efforts will not be finished for another "10 to 14 days"

tinalexander.github.io/notes/2024/07#…

A screenshot of text that reads in part: "Eric Deeble, USDA [00:15:25] We anticipate depopulation efforts at this facility will be completed over the next 10 to 14 days. Although as our colleagues from CDC mentioned, this work is ongoing." @USDA has urged culling to continue at Colorado farm, despite mounting cases

- "to stop virus amplification" and "reduce the viral load in the environment"
- "workers would still be required to care for and feed animals, prolonging their exposure"

tinalexander.github.io/notes/2024/07#…
A screenshot of text that reads in part: "Eric Deeble, USDA [00:14:10] Affected workers have been isolated and poultry depopulation efforts continue in order to stop the virus production and mitigate further spread. All decisions regarding this effort are being made while balancing human health and safety and animal health and welfare. Right now, USDA considers it very important for depopulation to continue to stop virus amplification and shedding prevent further spread and to reduce the viral load in the environment. If depopulation were to be paused, workers would still be required t...
Jul 12, 2024 4 tweets 2 min read
New today:

@CDCgov now estimates that SARS-CoV-2 levels in wastewater have reached "high" levels nationwide, for first time since past winter wave

At state level, 26 now have COVID-19 levels that are "high" or "very high" in wastewater

cdc.gov/nwss/rv/COVID1…
A screenshot of a chart and table that reads in part: "COVID-19 NWSS Wastewater Monitoring in the U.S. Print High Nationally, the wastewater viral activity level for COVID-19 is currently high. Region with the highest wastewater viral activity level for COVID-19: West This chart shows national and regional trends of SARS-COV-2 viral activity levels in wastewater. Make a selection from the filters to change the visualization information. Select a geography to add or remove it from the visualization. Data from the most recent two weeks may be incomplete due to delays in data reporting. T... 26 states and D.C. are also now seeing what @CDCgov classifies as "substantial increases" in COVID-19 emergency room visits

Most states still at "low" overall for now, though Florida and Hawaii are currently at "moderate"

covid.cdc.gov/covid-data-tra…
A screenshot of a U.S. map that is titled "Change % in Percentage of Emergency Department (DC) Visits Diagnosed as COVID-19 from Prior Week, by State/Territory - United States"
Jun 14, 2024 6 tweets 3 min read
New from @NIH researchers, experimenting with H5N1 versus a common pasteurization approach, found

"small but detectable quantity of HPAI A(H5N1) virus to remain infectious in milk after 15 seconds at 72°C if the initial titer is sufficiently high"

nejm.org/doi/full/10.10…
A screenshot of text that reads in part: "We emphasize that these measurements reflect experimental conditions, and direct measurements of virus in milk from infected cows that has been heated with commercial pasteurization equipment are needed. Given our findings, however, heat treatment at 63°C would yield a decrease in infectious viral titer by a factor of 1010 within 2.5 minutes (95% credible interval, 1.9 to 3.2), so standard bulk pasteurization of 30 minutes at 63°C has a large safety buffer. At 72°C, we measured a decrease in infectious virus by a factor of 104 within 5 seconds;... They were looking at a time and temperature combo that imitates "high temperature short time" pasteurization, widely used in U.S. dairy industry

But a lower temp + longer time was able to completely eliminate virus, creating a safety margin

niaid.nih.gov/news-events/in…
A screenshot of text that reads in part: "They found that 63℃ caused a marked decrease (1010-fold) in infectious H5N1 virus levels within 2.5 minutes and note that standard bulk pasteurization of 30 minutes would eliminate infectious virus. At 72℃, they observed a decrease (104-fold) in infectious virus within five seconds, however, very small amounts of infectious virus were detected after up to 20 seconds of heat treatment in one out of three samples. “This finding indicates the potential for a relatively small but detectable quantity of H5N1 virus to remain infectious in milk after ...
Jun 7, 2024 5 tweets 3 min read
Following an advisory committee meeting this week

@US_FDA has now officially called for this winter's COVID shots to be

"monovalent JN.1 vaccines to more closely match currently circulating SARS-CoV-2 viruses"

fda.gov/vaccines-blood…

A screenshot of text that reads in part: "Updated COVID-19 Vaccines for Use in the United States Beginning in Fall 2024 Share Post Linkedin Email Print FDA's Vaccines and Related Biological Products Advisory Committee (VRBPAC) met on June 5, 2024, to discuss and make recommendations on the selection of the 2024-2025 Formula for COVID-19 vaccines for use in the United States beginning in the fall of 2024. The committee unanimously voted to recommend a monovalent JN.1-lineage vaccine composition. Following the vote, the committee discussed considerations for the selection of a specific J... This effectively turns down shots @pfizer and @moderna_tx had offered to target newer JN.1 descendant variant called KP.2

@US_FDA's Peter Marks had asked VRBPAC:

"if this evolves further in the fall, will we regret not having been a little bit closer?"

tinalexander.github.io/notes/2024/06#…
A screenshot of text that reads in part: "I guess we could consider how we would word this now, but I do– I would ask for the committee to comment a little bit on this concept. We’re saying we will settle for JN.1. But I’d just kind of like to understand from a scientific standpoint, do we think there’s some possibility that that KP.2 or KP.3 are potentially going to evolve back closer to JN.1, because all of the data seem to show that neutralization, and granted we’re not saying that that’s a big deal here except perhaps, in newly vaccinated individuals, if you look closely at that, d...
Apr 26, 2024 5 tweets 2 min read
Health labs today got an "urgent" notice from @CDCgov

One lot of agency's Influenza A/H5 Subtyping Kit discovered to have a faulty component

Labs urged to halt use of component when testing suspect bird flu cases, over risk of "inconclusive results"

tinalexander.github.io/notes/attachme…

A screenshot of text that reads in part: "Dear Customer, Our records indicate that your laboratory/firm received the product listed in table above. This communication is to inform you about an issuewe have identifiedwith a recently manufactured Influenza A/H5 Subtyping Kit. This assay contains one Influenza A-specific target, and two redundant H5-specific components, H5a and H5b. As a part of our ongoing quality control process, an internal investigation conducted on the analytes of the Influenza A/H5 Subtyping Kit found decreased performance of the H5b target in lot 220307. At this ti...
Apr 24, 2024 6 tweets 4 min read
At press conference today

@USDA_APHIS Mike Watson said a shift in H5N1 detected in a cow from Kansas and a new detection of virus in cow *lung tissue* prompted order

"We need time to develop a understanding to support any future courses of action"

tinalexander.github.io/notes/2024/04#…

A screenshot of text that reads in part: "Mike Watson, APHIS [00:13:58] Additionally, we continue to see affected cows recover after supportive care with little to no associated mortality. However, over the past several weeks, USDA has noted a few things that have been the impetus for us to issue this federal order. That includes spread between cows within the same herd, spread from cows to poultry, spread between dairies associated with cattle movements, and cows without clinical signs that have tested positive for the virus. Also on April 16th, USDA APHIS microbiologists identified a... It comes as @US_FDA found PCR positive samples of H5N1 in milk from grocery shelves

Were those just dead virus left over after pasteurization, or infectious?

"conducting that analysis now, and we will be ready to share results in the coming days"

tinalexander.github.io/notes/2024/04#…
A screenshot of text that reads in part: 'Don Prater, FDA [00:34:43] We are conducting that analysis now, and we will be ready to share results in the coming days. We have, I think confirmed, what some of the other groups have found that there are PCR positives, but we still are processing the current samples and we be ready to share that in the coming days. JoNel Aleccia, AP [00:35:06] I mean, just to be clear that milk from shelves in the U.S.– you are waiting for the results of that. You haven’t found it yet in milk, taken from grocery store shelves, is that correct? Don Prater, FDA [00:...
Sep 15, 2023 5 tweets 3 min read
"Bye bye booster"

U.S. officials are trying their best not to call this year's round of updated COVID shots a "booster"

Though @CDCgov ACIP member Keipp Talbot acknowledged at @IDSAInfo yesterday

"going to be very difficult to stop using that word"

tinalexander.github.io/notes/2023/09#…
A screenshot of this text:  "Keipp Talbot, ACIP [00:41:20]  Bye bye booster. We are no longer giving boosters and it’s going to be very difficult to stop using that word because that word has become pervasive.  We are currently giving the updated 2023-2024 vaccine.  We are beginning to think of COVID like influenza. Influenza changes each year, and we give a new vaccine for each year. We don’t boost each year. So it’s going to be difficult to start changing that terminology, but it is no longer a booster. It is now the current vaccine for the year." You'll recall this is a term that @US_FDA has largely stripped out of its latest EUAs and approvals for this year's reformulated COVID shots

"these vaccines would not be considered 'boosters' per se"

tinalexander.github.io/notes/2023/09#…
A screenshot of this text:  "FDA spokesperson on whether new COVID shots are “boosters” Source: email from an FDA spokesperson Date: received September 14, 2023 On background: To clarify, these vaccines would not be considered “boosters” per se. These vaccines, as previously announced, would be updated with a new formulation for the 2023-2024 fall and winter seasons."
Sep 13, 2023 10 tweets 5 min read
Yesterday @CDCgov's ACIP backed "universal" recs for everyone to get fall's updated COVID shots

ACIP's work group on COVID stressed that only came after really wrestling with narrower recs

"an opportunity to reevaluate the vaccination program"

tinalexander.github.io/notes/2023/09#…
A screenshot of this text:  "Matthew Daley, ACIP [03:29:15]  There was some concern that the work group entered its to deliberations this summer assuming that a universal vaccination strategy was the obvious policy choice, but I just want to reiterate that that was very much not the case. The work group reviewed this as an opportunity to reevaluate the vaccination program. And we essentially started with a blank slate." They ultimately settled on "universal" recs for COVID shots

What sold @CDCgov ACIP work group chair Dr Matt Daley was

"knowing that there were deaths, including in children, including in those without chronic conditions"

tinalexander.github.io/notes/2023/09#…
A screenshot of this text:  "And so related, we, the work group, asked our CDC colleagues to update and present data on disease burden by age group for those with and without chronic medical conditions. And that was the most persuasive line of argument for me, knowing that there were deaths, including in children, including in those without chronic conditions, and my perception is that that those deaths are vaccine preventable.  And when we asked for this burden data, the focus was on serious disease, including hospitalization, ICU, admission, and death, and Dr. Wallace summarized all ...
Aug 8, 2023 5 tweets 3 min read
Measured as a % of all ER visits

New @CDCgov figures show COVID-19 again trending up nationwide, especially in kids under 12 years old

This indicator is highest in @HHSRegion6 relative to other ages, climbing to 2.62% of ER visits of 0-11 year olds

https://t.co/agzqVdqEdrcovid.cdc.gov/covid-data-tra…
A screenshot of a line chart titled:   "Percentage of Emergency Department Visits with Diagnosed COVID-19 in Region 6, by Age Group"  A fly out box reads:  "Region 6 00-11 7-Day Moving Average: 2.62% August 4, 2023" Nationwide, you'll recall @CDCgov's other NSSP surveillance has tracked

COVID-19 emergency department visits climbing especially among babies 0-1 years old

https://t.co/Emrmfpij82cdc.gov/ncird/surveill…
A screenshot of a line chart titled:  "Weekly Emergency Department Visits by Age Group and Respiratory Illness, as a Percent of All Emergency Department Visits"  A fly out box reads:  "End Date of MMWR Week: 07/29/2023 All Ages: 1.0% 00-01 Years: 3.1% 02-04 Years: 0.7% 05-11 Years: 0.6% 12-17 Years: 0.5% 18-64 Years: 0.9% 65+ Years: 1.4%"
Aug 2, 2023 5 tweets 3 min read
Per @CDCDirector, sounds like timeline for new COVID-19 vaccines this fall may now have been pushed back to October

"we anticipate there being a new COVID booster available probably in the early October time frame"

https://t.co/1o2Xe8k3af https://t.co/Hj0uhULiBfnpr.org/2023/08/01/119…

A screenshot of this text:  "PFEIFFER: Going back to COVID because it is such a - still an ongoing issue - do you know yet whether there will be a new COVID booster targeting the latest variant available in the fall?  COHEN: There are manufacturers of vaccines that are undergoing that process right now. The FDA experts, as well as experts here at CDC, still have their work to do. But, yes, we anticipate there being a new COVID booster available probably in the early October time frame. We know COVID is here with us. It's going to stay with us. And it's - sadly, it is still killing folk... This sounds a little later than the timeline @CDCgov had laid out last month, which anticipated "mid to late September 2023"

Jun 16, 2023 19 tweets 15 min read
At VRBPAC yesterday, @US_FDA's Peter Marks said for this fall's COVID-19 vaccination push

"though it's not influenza, for practical purposes I think we have really a one chance this fall to get vaccines into arms, barring some need to update further"

github.com/tinalexander/n… A screenshot of this text: ... VRBPAC ultimately voted in favor of updating COVID shots to XBB monovalent

@US_FDA's Marks said

"we'll make a decision quickly regarding the specific composition"
"don't think it will come as any surprise based on the discussion today"

github.com/tinalexander/n… A screenshot of this text: ...
Mar 24, 2023 4 tweets 3 min read
Around 96% of Americans are living in areas of "low" COVID-19 Community Levels, per @CDCgov figures this week

However there are some gaps in this week's data for several states. An example is Texas, where a data issue led to no cases being reported

data.cdc.gov/Public-Health-… A screenshot of this text:  "March 23, 2023: CDC is wor Meanwhile, while weekly COVID-19 deaths were on track for a record low last week, the pace of fatalities worsened slightly this week compared to last

covid.cdc.gov/covid-data-tra… A screenshot of a bar chart titled:  "Weekly Trends in
Mar 22, 2023 5 tweets 5 min read
Will U.S. get a new round of COVID boosters?

@AshishKJha46 told @hereandnow today for "high risk individuals"

"@US_FDA is looking at this actively and is going to make a decision based on what their assessment of the data is"

github.com/tinalexander/n… A screenshot of this text: ... An @US_FDA spokesperson said that they are continuing

"to closely monitor the emerging data in the United States and globally, and we will base any decision on additional updated boosters upon those data"

github.com/tinalexander/n… A screenshot of this text: ...
Mar 18, 2023 17 tweets 10 min read
In new statement, @GISAID says those SARS-CoV-2 records from China CDC *have not* been deleted

"released records may from time to time become temporarily invisible to allow for such improvements"

"currently being updated with newer and additional data"

github.com/tinalexander/n… A screenshot of this text: ... @GISAID's statement echoes what @mvankerkhove told reporters today

"have been told by GISAID that the data from China CDC is being updated and expanded. But again, we have called on China CDC directly to make that data accessible in full"

github.com/tinalexander/n… A screenshot of this text: ...
Feb 28, 2023 30 tweets 16 min read
It was a close vote for @pfizer's RSV vaccine in older adults today

Only three of @US_FDA's VRBPAC members ended up voting to say there was enough data available for both safety and effectiveness

https://t.co/7U1nL9aLyl https://t.co/XyWow7yb5egithub.com/tinalexander/n…

A screenshot of this text:  "Votes on safety (7 favor, 4 against, 1 abstain), effectiveness (7 favor, 4 against, 1 abstain) of Pfizer: (1) Holly Janes = YES safety, YES effectiveness (2) David Kim = YES safety, YES effectiveness (3) Daniel Feikin = YES safety, YES effectiveness  (1) Marie Griffin = NO safety, YES effectiveness (2) Hana El Sahly = NO safety, YES effectiveness (3) James Hildreth = NO safety, YES effectiveness  (1) Jay Portnoy = YES safety, NO effectiveness (2) Steven Pergam = YES safety, NO effectiveness (3) Amanda Cohn = YES safety, NO effectiveness  (1) Henry Bernstein... The @US_FDA had asked VRBPAC members whether "available data" were "adequate to support" the safety and effectiveness of @pfizer's RSV vaccine in adults 60 and older

https://t.co/gaWRmUktVafda.gov/media/165629/d…
A screenshot of this text:  "VRBPAC VOTING QUESTION # 1 Are the available data adequate to support the safety of ABRYSVO (RSVPreF) when administered to individuals 60 years of age and older for the prevention of lower respiratory tract disease caused by RSV? Please vote “Yes” or “No” 1 VRBPAC VOTING QUESTION # 2 Are the available data adequate to support the effectiveness of ABRYSVO (RSVPreF) for the prevention of lower respiratory tract disease caused by RSV in individuals 60 years of age and older ? Please vote “Yes” or “No”"
Feb 13, 2023 6 tweets 4 min read
At briefing on new Youth Risk Behavior Survey results from 2021

@CDCgov's Houry said new data "show a distressing picture" on youth mental health crisis

"America's teen girls are engulfed in a growing wave of sadness, violence and trauma"

github.com/tinalexander/n… A screenshot of this text:  "12:05:30 PM DEBRA HOURY, C @CDC_DASH's Kathleen Ethier said that this is the first YRBS survey results since COVID pandemic but

"data have shown that many measures were moving in the wrong direction before the pandemic"

github.com/tinalexander/n… A screenshot of this text:  '12:07:42 PM KATHLEEN ETHIER, CD
Feb 10, 2023 8 tweets 8 min read
At @StrengthenFDA event today

@US_FDA @DrCaliff_FDA pledged not to "kick the can down the road" on taking on cannabis regulation

"it's time to create a new regulatory pathway for the 30 something derivatives of a cannabis plant"

github.com/tinalexander/n… A screenshot of this text:  "What I'm proud of is that @DrCaliff_FDA said @US_FDA now has a "pretty good strategy" for developing tests for next pandemic outbreak

"I've got a beautiful playbook from Dr Shuren and his CDRH colleagues that they've developed from the lessons learned"

github.com/tinalexander/n… A screenshot of text that reads in part:  "I've got a b