My Authors
Read all threads
𝗖𝗼𝘃𝗶𝗱-𝟭𝟵: 𝗻𝗼𝘁𝗲𝘀 𝗼𝗻 𝗮 𝗽𝗮𝗻𝗱𝗲𝗺𝗶𝗰

1/17 1️⃣ Prevention: healthcare

Standard, contact, droplet, eye protection, airborne (N95) in aerosol-generating procedures, until Sx resolve & 2 (-) swabs 24H apart

CDC: bit.ly/2Wb0VCy
WHO: bit.ly/2UcMwTA
2/17 1️⃣ Prevention: community

Vaccine development ongoing
5 things you can do to protect yourself 👇 [Fig 1]

Flattening the curve is not just a mathematical modeling; history has shown its importance 👇[Fig 2] wapo.st/2WeypQp

CDC: bit.ly/2QiCTSj
3/17 2️⃣ Clinical features

Incubation: median 4 days (2-7 days ); up to 14 days

98% develop Sx within 12 days bit.ly/2w3dzJi

Everyone, regardless of age, is SUSCEPTIBLE and can be a vector of infection👇 >50% of cases are in people <50 yrs. bit.ly/38UbRY2
4/17 2️⃣ Clinical features

▪️Fever, almost universal Sx bit.ly/38UbRY2
⚡️Can be + in only 50% of pts at presentation
▪️Cough, 2nd most common (dry; only 1/3 +sputum)
▪️More gradual onset than influenza; can develop pneumonia
after the 1st week
5/17 2️⃣ Clinical features

Note that nasal congestion is uncommon (5%).
Diarrhea (4%), sore throat (14%), HA (14%) can be present

Asymptomatic infection, unknown👇More data needed.
✔️ Diamond Princess cases: 51% were asymptomatic

[Figure: bit.ly/2TWl1Pt]
6/17 2️⃣ Clinical features

▪️ Nonspecific lab findings
▪️ Lymphopenia, most common finding (63%)
▪️ Can have high WBC or low WBC
▪️ Procalcitonin normal at presentation (70%)
7/17 2️⃣ Clinical features

Imaging findings, also nonspecific

✔️Ground glass opacities usually b/l, peripheral,
lower lobe
✔️Less common: pleural effusion, air bronchogram,
lymphadenopathy
✔️Reverse halo sign in 11% 👇bit.ly/2vwya8w
8/17 2️⃣ Clinical features

Spectrum 👇 [Fig: bit.ly/2TVLfBy]

✔️ 80% mild/no PNA
✔️ 14% severe (RR >30, hypoxia)
✔️ 5% critical (resp failure, shock)
9/17 2️⃣ Clinical features

Among 138 hospitalized pts: bit.ly/2U9rchS

✔️ 26% required ICU
✔️ 16% developed ARDS
✔️ 12% required mechanical ventilation
✔️ 3% (n = 4) required ECMO
10/17 2️⃣ Clinical features

Recovery 2 wks, 3-6 wks in critically ill

Mortality 2.3% but higher in certain groups:
✔️ 15% >80 yrs, 8% 70-79% yrs, 50% critical illness
✔️ CVD > DM, HTN, chronic resp dx, cancer

bit.ly/2TUz47T, bit.ly/2TVLfBy
11/17 3️⃣ Transmission

Need more studies. Via droplets (6 ft). Stable in aerosols/fomites; may play a role in transmission. bit.ly/3di1DnI
⚡️Aerosol (3h), copper (4h), cardboard (24h)
⚡️Plastic/steel (2-3 days)

Asymptomatic transmission ? bit.ly/2WyebS3
12/17 4️⃣ Comparisons w/ flu, SARS, MERS

Data presented👇based on lit review. Need more data for COVID.

⚡️Covid shares features of flu & SARS/MERS
⚡️Covid spreads like flu (exc asymptomatic tx?) but w/ higher
mortality
⚡️ Covid (?superspread bit.ly/3di1DnI)
13/17 5️⃣ Testing

Fever and/or cough/dyspnea w/ epi link prior 14 d:
✔️ close contact (6 ft; no PPE)
✔️ residence/travel high risk areas

Also can be considered in severe lower resp illness w/o alternative dx, even in the absence of epi link
14/17 5️⃣ Testing

CDC recommends prioritizing (limited testing resources):
✔️ hospitalized pts
✔️ high risk pts (immunosuppressed, >65 y, comorb)
✔️ high risk exposure (travel, being a HCW)

Need to do infection control measures when COVID supsected

bit.ly/3b724iu
15/17 6️⃣ Treatment

Triage (home vs hospital)
Largely supportive care

Investigational drugs (RCTs ongoing):

⚡️ Remdesivir
⚡️ Chloroquine, hydroxychloroquine
⚡️ Ritonavir/lopinavir
⚡️ Tocilizumab (IL-6 inhibitor)
16/17 7️⃣ Virology

A betacoronavirus, same genus as SARS & MERS

❗️SARS-CoV-2: name of virus
‼️ COVID-19: name of disease

Enters via ACE-2 in lungs, GI, kidneys

⚡️No current evidence to show harmful effect of ACEI or ARB
on COVID-19 bit.ly/3b5EUcC
17/17 8️⃣ Epidemiology

Rapidly changing. Lots of hot spots to date. Here are my favorite sites to get uptodate info on epi:

Hopkins: bit.ly/2UeMI4R
WHO: bit.ly/38ScSQg
Live: bit.ly/3a2aLL1
17/N
In the spirit of volunteerism, our students at @WUSTLmed have come up with very useful literature review of #COVID19. Will share this with you as it comes in realtime.




@CGhaznavi @JenniferSpicer4 @BradCutrellMD @TxID_Edu
Missing some Tweet in this thread? You can try to force a refresh.

Enjoying this thread?

Keep Current with WuidQ: Washington University ID Questions

Profile picture

Stay in touch and get notified when new unrolls are available from this author!

Read all threads

This Thread may be Removed Anytime!

Twitter may remove this content at anytime, convert it as a PDF, save and print for later use!

Try unrolling a thread yourself!

how to unroll video

1) Follow Thread Reader App on Twitter so you can easily mention us!

2) Go to a Twitter thread (series of Tweets by the same owner) and mention us with a keyword "unroll" @threadreaderapp unroll

You can practice here first or read more on our help page!

Follow Us on Twitter!

Did Thread Reader help you today?

Support us! We are indie developers!


This site is made by just three indie developers on a laptop doing marketing, support and development! Read more about the story.

Become a Premium Member ($3.00/month or $30.00/year) and get exclusive features!

Become Premium

Too expensive? Make a small donation by buying us coffee ($5) or help with server cost ($10)

Donate via Paypal Become our Patreon

Thank you for your support!