Channel
@covid19us
On this record: Growth · Engagement · Posts · Citations · Cite this entry
808subscribers
-3 since we began measuring on 6 August 2026
Risers and fallers across the register · movement among entries of Under 1,000.
| Telegram ID | -1001212415949 |
|---|---|
| Type | Channel |
| Username | @covid19us |
| Created | Between 1 March 2018 and 31 July 2021— estimated from Telegram’s id allocation, not measured. How this range is calculated. |
| First recorded | 6 August 2026 |
| Last confirmed live | 21 August 2026 |
| Measurements held | 4 |
| Confirmed unchanged | 1 time, most recently 21 August 2026 |
| On Telegram | t.me/covid19us |
| Measured (UTC) | Subscribers | Change |
|---|---|---|
| 21 Aug 2026, 17:56 | 808 | -1 |
| 15 Aug 2026, 05:17 | 809 | -2 |
| 6 Aug 2026, 15:21 | 811 | no change |
| 6 Aug 2026, 13:28 | 811 | first reading |
20 posts held, back to 14 November 2021 — the reader has not yet reached the start of this channel’s public history, so older posts may sit further back, unread. Read across 1 pageof Telegram’s post history, 20 posts per page.
Nothing published in the last 30 days. ERR and ER are rolling 30-day measures, so there is nothing to compute — we hold 20 posts for this entry, the most recent from 1 February 2022. An engagement rate over an empty window would be a number about nothing.
Pfizer今天向FDA提交了6个月～5岁以下的儿童接种新冠疫苗后的免疫数据。该年龄段原本为两针，每针3微克（成人为30微克，5-12岁为10微克），但对于2-5岁以下岁年龄组，该剂量产生的免疫反应不如预期，因此预期需要调整为三针。 https://www.pfizer.com/news/press-release/press-release-detail/pfizer-and-biontech-initiate-rolling-submission-emergency
美国境内领取免费新冠快速测试盒👉 https://special.usps.com/testkits 每个家庭住址四盒。
FDA 批准了 Merck 的新冠口服药（需医生处方，无需住院，仅限成人服用）。 上个月FDA咨询委员会针对此药开会时，表示出担心该药对孕妇和胎儿的安全性或有风险。因此，FDA 建议服用 Merck 该药期间、以及停药4天后，使用避孕措施。 https://www.cnbc.com/2021/12/23/us-fda-authorizes-mercks-at-home-antiviral-covid-19-pill-.html?
FDA批准 Pfizer的新冠口服药 Paxloid 可以在家服用（需医生处方，无需住院，12岁以上人士可用）。关于 Paxloid 对于 Omicron 变种的有效率还在等待进一步的数据。 另外，苏格兰和南非的最新数据显示 Omicron 比以前的新冠变种导致的住院风险要明显降低。 https://www.wsj.com/articles/pfizers-covid-19-pill-authorized-in-u-s-11640193220
南非卫生部表示，Omicron 来袭的第二周住院率仅1.7%。相比之下，此前 Delta 时期的第二周住院率高达19%。 现在南非日增2万左右，Delta 同一时期的日增数在4400。 https://www.bloomberg.com/news/articles/2021-12-17/s-africa-says-hospitalizations-in-omicron-wave-much-lower
Pfizer公布了自己的抗体中和测试结果，并表示： 1、三剂 Pfizer-BioNTech 疫苗可中和 Omicron，但两剂的中和效价显着降低；与两剂相比，增强后中和抗体滴度提高了25 倍，与两剂后中和标准株的滴度相当，预计ti gong相当的高水平的保护； 2、由于 CD8+ T 细胞识别的刺突蛋白中 80% 的表位不受 Omicron变异的影响，因此两剂仍可能防重症； 3、将继续推进针对 Omicron 的疫苗的开发，如有需要，预计在明年3 月之前推出 https://www.pfizer.com/news/press-release/press-release-detail/pfizer-and-biontech-provide-update-omicron-variant
#科普 今天南非和瑞典的科学家分享了他们针对Omicron的血清学检测结果。此类小样本测试将康复者、疫苗者的血清稀释后，检测其所含抗体对于病毒的中和能力，需要用到活病毒或者伪病毒，与普通抗体测试并不同。 南非的研究有12个样本，使用活病毒，结果只打了Pfizer疫苗者，中和能力下降了41倍，但感染+疫苗者（三次接触抗原），则下降幅度没那么大。而瑞典的研究使用伪病毒，结果发现康复者下降40倍，感染+疫苗只下降5倍，此外随机抽取的血液样本（可能是疫苗者）则为7倍，并发现与Delta的折损无差异。 基于这些结果，La Jolla Institution of Immunity研究免疫系统的Shane Crotty教授、西奈山医院研究病毒与疫苗的Florian Krammer教授都呼吁接种第三针，因为从免疫原理看来，第三针与感染+接种是很接近的（多次接触抗原），会提高B/T细胞的识别广度。对于具体原理感兴趣的话可以参考👇 htt…
纽约时报 早期研究显示奥密克戎致病症状可能较轻 Telegraph | 原文 | 加入书友群
#纽约市 市长 de Blasio 要求市内所有单位（包括私企）从12月27日起对员工要求强制新冠疫苗接种。 此前，联邦法院已经要求暂停执行 Biden 政府要求的所有百人以上企业员工疫苗强制令。 https://apnews.com/article/coronavirus-pandemic-health-new-york-new-york-city-476a856e401bb826d3e828f6e580408d
病毒测序专家 Trevor Bedford 根据每天南非通报的数据分析，认为 Omicron 的传播速度是 Delta 大约3倍左右，初步估计 Rt 为 3-3.5 （Rt 代表传播速度，可粗略理解为一个病人可以感染几个人）。 （要感谢南非学者及时测序并通报给了全球数据库分享）。 https://twitter.com/trvrb/status/1467245887357210624
周四的数据显示，过去24小时内美国接种了218万剂疫苗，其中104万为加强针，近68万为第一针。这是今年5月以来最大的单日疫苗注射量。 近日已有多个州和地区通报发现 omicron变种感染。 https://twitter.com/cyrusshahpar46/status/1466483200629215238
美国开始要求入境美国的旅客必需有登机前24小时内的核酸检测证明。 对于美国境内的公共交通，旅客必须佩戴口罩。此命令持续到明年3月18日。 https://www.cnbc.com/2021/12/02/omicron-covid-variant-us-tightens-travel-testing-requirements-mask-mandates.html
Showing the 12 most recent of 20 posts we hold for @covid19us. View and reaction counts are the latest single reading for each post, not a live figure, and a recent post is still accumulating both. A view count marked ≈ was rounded by Telegram before we ever saw it — t.me prints views in full below 1,000 and to three significant figures above, so ≈1,200,000 means somewhere between 1,150,000 and 1,249,999. Unmarked counts are exact. Text is reproduced from the public post preview and truncated for length.
Republishes
Channels on the register whose posts this channel has forwarded.
Built only from forwarded posts we have actually read, on both sides. Coverage is early and deliberately incomplete: a missing link means we have not read the post that would prove it, never that the relationship does not exist. Counts are distinct forwarded posts observed, so they only ever go up as we read more.
Names
Channels on the register whose handles appear in this channel's posts.
A mention is a weaker signal than a forward and is counted separately for that reason — naming a channel is not republishing it, and a handle in a post body is easy to place deliberately. The post counts beside each row below are distinct posts in which the handle appeared, from posts we have read on both sides — the “Named by N registered channels” figure above is a different count, of distinct NAMING CHANNELS rather than posts, and is not the sum of the rows under it.
A live page changes as we take new readings, so a citation should name the measurement it is based on, not just the URL. The line below cites the subscriber count as measured 21 August 2026 — this entry's latest reading, not the date you are reading this.
“Covid-19 美国疫情信息推送” (@covid19us), 808 subscribers as measured 21 August 2026. Telegram Register, tgregister.com/channel/covid19us.
Full measurement history, CC BY 4.0. Every reading this register holds for this entry, not just the latest one, as a dated, downloadable record: CSV · JSON. Free to use with attribution to tgregister.com. Each file carries its own generation timestamp, which is the figure to cite for exactly when the data was retrieved.