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Vinay Prasad MD MPH engagement report

@VPrasadMDMPH - 308K followers on X

Measured over 23 original posts from a 30-day window, last computed on September 5, 2026.

Engagement

Middle of its size range
Per follower
0.06%
of 308K followers
Per impression
1.07%
17K views on a typical post
Reach
5.62%
of its followers see a post
Typical post
185
interactions (median)
Saved
0.162%
28 bookmarks on a typical post
Posting rate
1.5/day
active 50% of days
Peak time
14:00 UTC
Thursday

A typical post picks up 185 interactions against 308K followers, an engagement rate of 0.06%. Measured over 23 original posts, its engagement rate beats 52% of 6,874 tracked accounts of a similar size, which puts it in the middle of its size range rather than at either end. Posts are seen about 17K times each, and 1.07% of those impressions turn into an interaction. That is about 5.62% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 1.5 posts a day over the last 30 days, with activity on roughly 50% of days. Most posts go out around 14:00 UTC, and Thursday is the busiest day of the week. Of the 23 posts sampled, 83% carry an image or video, 52% are part of a thread and 17% link out. The account's strongest tracked post pulled 1.3K interactions, about 7.0x its own typical post.

Measured over 23 original posts from a 30-day window, last computed on September 5, 2026.

Compared with accounts its own size

Vinay Prasad MD MPH's engagement rate beats 52% of the tracked X accounts closest to it in follower count (6,874 accounts, accounts of similar size (decile 7 of 10)). A percentile is spread evenly by construction, so 50 really is the middle of that group and 90 really is its top tenth.

On engagement per impression rather than per follower it beats 48% of the same group. When those two numbers disagree, the gap is about how far its posts travel rather than how people react to them.

Where this sits in the catalog

At 0.06%, Vinay Prasad MD MPH sits above the 25th percentile of the 66,258 accounts in this comparison. That places it in the below the median band, which runs 0.016% to 0.1%.

p100.002%
p250.016%
p50 (median)0.1%
p750.499%
p902.09%
p99119.6%
Engagement rate as a share of followers, across the 66,258 accounts we have scanned enough to measure. The axis is logarithmic, because the top and bottom of this population are about 56,968 times apart and a linear axis would flatten everything below the median into a single point.
Show the percentile table
Engagement rate percentiles
PercentileEngagement rate
10th percentile0.002%
25th percentile0.016%
50th percentile0.1%
75th percentile0.499%
90th percentile2.09%
99th percentile119.6%

This ruler is the whole measured catalog, not a size-matched group: it shows where the raw rate falls across every account we can measure, all of which are large. For a like-for-like comparison, read the size-band percentile above instead. See how the bands are built

Posting timing

This account posts most often around 14:00 UTC, and Thursday is its busiest day of the week. The bars below are the catalog-wide pattern, with this account's own busiest slot marked. They do not show how this account performs at each hour: we keep one aggregate per account, not one per hour, so that measurement does not exist in our data.

Engagement by hour posted, UTCTwenty-four bars, one per UTC hour. Each bar shows how posts published in that hour compare with their own authors' median engagement. Bars above the centre line ran higher than the median, bars below ran lower. A marker flags Busiest hour: 14:00 UTC.
0003060912151821
Above the authors' own mediansBelowScale: plus or minus 111%Busiest hour: 14:00 UTC
Show engagement by hour posted, utc as a table
Engagement by hour posted, UTC
Hour (UTC)Vs author medianPosts
00:00 UTC-1%89K
01:00 UTC-2%90K
02:00 UTC-3%88K
03:00 UTC-4%94K
04:00 UTC-5%76K
05:00 UTC-4%75K
06:00 UTC-5%86K
07:00 UTC-5%93K
08:00 UTC-4%108K
09:00 UTC-4%124K
10:00 UTC-3%129K
11:00 UTC-3%141K
12:00 UTC-3%154K
13:00 UTC-3%167K
14:00 UTC-4%173K
15:00 UTC-2%176K
16:00 UTC-3%171K
17:00 UTC-3%159K
18:00 UTC-2%149K
19:00 UTC-2%141K
20:00 UTC-1%131K
21:00 UTC0%116K
22:00 UTC-2%100K
23:00 UTC-1%90K
Engagement by day of weekSeven bars, one per weekday, Sunday first. Each bar shows how posts published on that day compare with their own authors' median engagement. Bars above the centre line ran higher than the median, bars below ran lower. A marker flags Busiest day: Thursday.
SunMonTueWedThuFriSat
Above the authors' own mediansBelowScale: plus or minus 111%Busiest day: Thursday
Show engagement by day of week as a table
Engagement by day of week
DayVs author medianPosts
Sunday+5%393K
Monday+1%483K
Tuesday-2%520K
Wednesday-3%472K
Thursday-2%430K
Friday-3%447K
Saturday+2%393K
See what moves engagement across the whole catalogWhat counts as a good engagement rate at this size

Formats this account uses

Its own posting mix on the left, and what each of those formats does across every account we track on the right. Only formats where the effect clears our publish test appear here, so an empty row is a format we could not measure rather than one that does nothing.

This account's posting mix compared with catalog-wide effects
FormatThis accountCatalog effect95% intervalAccounts behind it
Image or video83% of posts+111%+108% to +115%34K
Outbound link17% of posts-41%-42% to -40%32K
Typical length--3%-3% to -2%54K
  • 83% of this account's sampled posts carry an image or video. Across the catalog, posts with an image or video run 111% above the same accounts' other posts.
  • 17% of its posts carry a link off X. Across the catalog, posts with an outbound link run 41% below the same accounts' other posts.
  • Its average post runs 144 characters, which falls in the 80 - 180 characters band. Across the catalog, posts of 80 to 180 characters run 3% below the same accounts' other posts.

These are catalog-wide differences applied to this account's own posting mix, not a measurement of how each format performs for this account specifically. We keep one median per account, not one per format per account, so the second thing is not something this data can tell you.

Best tweets

  • Aug 28, 20267.0x their median

    Josh Shapiro is in trouble "Governor, if your goal is not to be dragged down by the extreme wing of your party— remember that also applies to public health, which is one and the same." https://t.co/ZmZMk2qolD

    1.1K17829321K viewsView on X
  • Aug 4, 20265.6x their median

    Anthony Fauci https://t.co/XeximSGqHa

    8061426019125K viewsView on X
  • Apr 25, 20254.6x their median

    I've made all 540+ publications from @vkprasadlab freely available on this website in accordance with grant and university policies. Please check it out for PDFs of 15 years of our work. Email us (via the website) if something is missing or incorrect. https://t.co/NVx2yE6ySw https://t.co/DMzLqJW1PC

    615761537213K viewsView on X
  • Aug 4, 20262.7x their median

    A loophole for bribery https://t.co/HaPLH1RkKW

    3957322925K viewsView on X
  • Aug 3, 20262.6x their median

    Fauci's error https://t.co/eH60xELZh1

    3866521518K viewsView on X
  • Aug 5, 20262.1x their median

    Lab leak and who is responsible politicians or scientists https://t.co/VkQKZ3oZlV

    3244915519K viewsView on X
  • Aug 22, 20262.1x their median

    The New England Journal publishes an article about Jason Arday with astonishing woke claims & more https://t.co/NzPPfINFVj

    3303218230K viewsView on X
  • Aug 3, 20261.9x their median

    White House Covid Czar Says He thinks it was Lab Leak https://t.co/zSFSHTsUjf

    3033319533K viewsView on X
  • Aug 6, 20261.9x their median

    Covid Czar says it was lab leak https://t.co/sVz4ZlQa5I

    2924618213K viewsView on X
  • Aug 24, 20261.9x their median

    Should we ban medical student research? https://t.co/ZO0PusaFbb

    27025471482K viewsView on X

Ranked by total interactions across everything we have tracked for this account, which is a longer history than the 30-day window the rates above use. The multiple compares each post to this account's own median.

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Reading these numbers

A typical post picks up 185 interactions against 308K followers, an engagement rate of 0.06%. Measured over 23 original posts, its engagement rate beats 52% of 6,874 tracked accounts of a similar size, which puts it in the middle of its size range rather than at either end. Posts are seen about 17K times each, and 1.07% of those impressions turn into an interaction. That is about 5.62% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 1.5 posts a day over the last 30 days, with activity on roughly 50% of days. Most posts go out around 14:00 UTC, and Thursday is the busiest day of the week. Of the 23 posts sampled, 83% carry an image or video, 52% are part of a thread and 17% link out. The account's strongest tracked post pulled 1.3K interactions, about 7.0x its own typical post.

What is Vinay Prasad MD MPH's engagement rate on X?
Vinay Prasad MD MPH (@VPrasadMDMPH) has an engagement rate of 0.06%, based on the median interactions across 23 original posts from the last 30 days against 308,064 followers. Replies, reposts and quote-posts of other people are excluded from that sample.
Is that a good engagement rate?
At 0.06%, Vinay Prasad MD MPH sits above the 25th percentile of the 66,258 accounts in this comparison. Those comparison accounts are all large ones, because our scanning cadence is weighted towards big accounts, so this is a ranking among peers of similar scale rather than a ranking across X.
Does @VPrasadMDMPH have real engagement?
Its engagement rate beats 52% of the tracked X accounts closest to it in follower count (6,874 accounts), which puts it in the middle of its size range group. Ranking inside a size band matters because engagement rate falls as accounts grow, so a raw rate would mostly re-measure the follower count. It is a starting point for a look at follower quality, not a verdict on it.
When does @VPrasadMDMPH post?
Most posts go out around 14:00 UTC, and Thursday is its busiest day, at roughly 1.5 posts per day across the measured window.

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