HKU Medicine
@hkumed
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Committed to advancing research, learning and teaching medicine and health, for the betterment of humanity. #medicalresearch #medicaleducation #hkumed135
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Joined October 2013
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Besides Twitter, HKUMed is also active on other platforms.
📍Here’s where you can find us:
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5
2
17
Q: How is Rt reflective of the outbreak?
A: Rt will vary depending on the effectiveness of control measures and behavioral changes, such as quarantine enforcement, usage of face masks, travel restrictions, class suspensions, and physical distancing.
#KnowtheFacts
#COVID19
50
2K
21K
Q: How can we effectively clean our phones and accessories?
A:
> Clean your handbag with a piece of wet cloth
> Wash your glasses with soap and water
> Clean your phone with hand sanitiser
#knowthefacts
#COVID19
#coronavirus
52
4K
20K
Q: What is R0 and what is Rt?
A: R0 represents the number of people that one infected person can potentially go on to infect if there are no intervention measures in place. Rt is the average number of secondary cases per one case at any given time.
#KnowtheFacts
#COVID19
41
2K
17K
Question: How can we sanitise our clothing to maintain good hygiene?
Answer:
➩ Doing your laundry daily is recommended
➩ Step on a towel soaked with 1:99 diluted bleach to sanitise your shoes
➩ Put a piece of wet cloth on the jacket and iron it
#knowthefacts
#COVID19
49
4K
16K
Working with HKU School of Modern Languages and Cultures,
@HKUMed
has translated
#COVID19
infographics on
#socialdistancing
,
#working
,
#disinfection
, etc. into:
🆕Thai
▶️Arabic
▶️French
▶️German
▶️Italian
▶️Japanese
▶️Korean
▶️Portuguese
▶️Spanish
Feel free to download & share.
31
805
14K
Q: If Rt is below 1, is the outbreak over?
A: While it may be encouraging to see Rt below 1, this does not necessarily mean we can immediately relax current health protocols and precautions.
#COVID19
#KnowtheFacts
25
1K
14K
Q: What precautions can we take while at lunch during the
#coronavirus
outbreak?
A:
⇨ Wash hands before taking off your mask
⇨ Stagger lunch breaks & avoid going out
⇨ Avoid talking while eating
⇨ Minimise face-to-face meals
⇨ Order individual meals
#knowthefacts
#COVID19
44
2K
13K
Not all disinfectants are suitable for the skin, as some may cause irritation or pain. The following are disinfectants, concentration, and exposure time that are suitable to use on skin and have been shown to inactivate other coronaviruses by 99.99%.
#KnowtheFacts
#COVID19
57
3K
12K
Q: Can we sanitise and reuse masks to expand its lifespan?
A: We cannot sanitise and reuse masks. If you want to extend its lifespan, cut a piece of gauze and line the inner part to prevent direct contact of the mask to your mouth and nose.
#knowthefacts
#COVID19
70
3K
11K
Q: Are DIY masks better than nothing?
A: DIY masks can help reduce the amount of microbes expelled from a cough or a sneeze, but its effectiveness is only 1/3 of a surgical mask.
#knowthefacts
#COVID19
51
2K
11K
Q: What precautions can we take once we return home after work?
A:
⇨ Wash your hands and clothes after work
⇨ Avoiding touching your nose & mouth after touching the door knob
⇨ Disinfect door knobs, remote controls, water tap handles etc.
#knowthefacts
#COVID19
#coronavirus
41
1K
10K
Have a question about the side effects & effectiveness of
#COVID19
vaccines? 💉
Send them to clinical virologist Dr
@sid8998
before 11 July by replying with
#askHKUMed
!
#HKTwitterGetsVaxxed
#vaccinated
#vaccine
#askHKUMed on vaccines!
59
505
8K
Do you have questions about the different policies taken in Asia for
#COVID19
?
Prof. Keiji Fukuda of
@hkumed
will be joining
@sree
to discuss policy lessons from Asia for the
#coronavirus
.
Time: 21:00HKT/09:00NYC - Wed, April15th.
Submit your questions through
#askHKUMed
.
#askHKUMed on COVID-19
17
509
8K
Q: Are higher temperatures more likely to cause loss of infectivity in
#SARS_COV_2
?
A: The team at
@hkumed
incubated the virus and observed how long it would take for it to lose infectivity at different temperatures.
#COVID19
#KnowTheFacts
93
2K
7K
While bats were thought to be the likely carriers of the novel 2019
#coronavirus
, a team at
@hkumed
found that pangolins, scaly-skinned animals native to Asia, also called ‘scaly anteaters’, may be one of the missing links for the virus to jump from animals to humans.
#COVID19
1/
88
1K
7K
Q: How can we sanitise our clothing to maintain good hygiene?
A:
> Doing your laundry daily is recommended.
> Step on a towel soaked with 1:99 diluted bleach to sanitise your shoes
> Put a piece of wet cloth on the jacket and iron it
#knowthefacts
#COVID19
#coronavirus
14
657
7K
Have questions about the
#SARSCoV2
virus and the
#COVID19
disease?
Submit your questions to Prof John Nicholls of
@hkumed
by tweeting
#askHKUMed
before April 7th.
#askHKUMed on COVID-19
21
369
6K
Q: How does the rapid test work?
A:
1. Obtain DNA sample from a patient
2. Introduce primer to synthesise DNA; this will amplify DNA material in sample to detectable quantities
3. Detect the presence of coronavirus DNA using the virus-specific probe
#KnowTheFacts
#COVID19
31
1K
6K
Q: What workplace precautions can we take during the
#coronavirus
outbreak?
A: While at work:
⇨ Maintain good indoor airflow
⇨ Place work spaces further apart to keep a distance
⇨ Disinfect your daily items such as the mouse, keyboard, & mobile phone
#knowthefacts
#COVID19
23
683
6K
It is important to disinfect your personal belongings to prevent the spread of the coronavirus. The following disinfectants with the following compositions can be used to clean surfaces and have been shown to inactivate coronaviruses by 99.99%.
#KnowtheFacts
#COVID19
17
901
6K
Q: Would wearing multiple masks improve the effectiveness of the filtration?
A: The key to effective filtration is the fit of the mask. Wearing multiple masks will affect its fit and obstruct your breathing.
#knowthefacts
#COVID19
9
803
6K
Q: What workplace precautions can we put in place during the
#coronavirus
outbreak?
A: For going to work:
⇨ Work from home if conditions permit
⇨ Arrange staggered work schedules
⇨ Wear a mask on public transportation
⇨ Minimise face-to-face meetings
#KnowtheFacts
#COVID19
16
636
6K
Q: Why does the rapid test take so long?
A: DNA sequence of coronavirus wasn't known initially, hence requiring multiple tests, and increasing wait time. Now with its sequencing known,
@HKUMed
was able to develop a test that led to speedier results.
#KnowTheFacts
#COVID19
8
598
5K
Have a question about
#COVID19
vaccine hesitancy and herd immunity?
Submit them to Prof
@bencowling88
, head of epidemiology & biostatistics
@HKU_SPH
, before 19 July by replying with
#askHKUMed
!
Eg: What’s the threshold for herd immunity in 🇭🇰?
#HKTwitterGetsVaxxed
#vaccinated
#askHKUMed on vaccines!
61
349
5K
Wondering how
#COVID19
will impact different genders?
Have questions on the social protection schemes being introduced?
What strategies are governments taking to protect the financial well-being of households?
Tweet your questions with
#askHKUMed
by April 22 to
@KarenGrepin
.
#askHKUMed on COVID-19
19
383
5K
Wondering about antivirals and vaccines for
#SARSCoV2
and
#COVID19
?
Dr
@sid8998
, Clinical Assistant Professor in the Department of Microbiology at
@hkumed
is here to answer your questions.
Submit your questions to Dr Sridhar by tweeting with the hashtag
#askHKUMed
by April 28.
#askHKUMed on COVID-19
19
280
5K
Q: What is a “false negative”?
A: The incubation period of
#SARS
-CoV-2 can be long, and viral shedding may only occur after 3 to 4 days of infection. Rapid tests carried out during a time when viral concentrations are low may not detect the virus.
#KnowTheFacts
#COVID19
15
859
5K
Q: Are disinfectants effective in causing
#SARS_COV_2
to lose infectivity?
A: The
@hkumed
team tested a wide variety of different disinfectants and found that all the following were effective in causing viruses to lose infectivity after 5 minutes of use.
#COVID19
#KnowTheFacts
42
1K
5K
Any questions you have about individual prevention or community measures against
#COVID19
?
Send your questions to Professor
@bencowling88
by tweeting
#askHKUMed
before March 31st.
#askHKUMed on COVID-19
12
277
4K
Q: Is it possible to protect yourself with towels?
A: Towels and scarves can prevent direct contact of droplets onto your nose and mouth to a limited extent, but are not effective in protecting yourself against the new
#coronavirus
.
#knowthefacts
#COVID19
4
589
4K
Thank you for your
#askHKUMed
questions on COVID-19
#vaccine
side effects and effectiveness.
Take a look at Dr
@sid8998
’s answers 👇🏻
#COVID19
#HKTwitterGetsVaxxed
#vaccinated
22
220
4K
Q: Can we use store-bought mask filters or materials for protection?
A: In short, no - the three layers each have specialised uses and cannot be purchased in stores, while filters derived from other household items would obstruct breathing.
#knowthefacts
#COVID19
6
522
4K
Q: Is age a factor that affects the likelihood of infection?
A: Research suggest that those above the age of 70 are on average 3 times more likely to be infected, as well as 3 times more likely to suffer fatal complications compared to those below 70.
#COVID19
#KnowtheFacts
12
483
4K
Do you have a question about
#COVID19
vaccines and children?
Send us your questions for Dr Gilbert T Chua, Clinical Assistant Professor in the Department of Paediatrics and Adolescent Medicine, using
#askHKUMed
.
#HKTwitterGetsVaxxed
#vaccinated
#askHKUMed on vaccines!
28
148
3K
Do you have a question about
#COVID19
vaccines?💉
Pick which topic you’d like clinical virologist Dr
@sid8998
to focus on for the upcoming
#askHKUMed
👇🏻
Vaccine side effects
7967
Vaccine types
2843
Vaccine effectiveness
6140
Vaccines & special groups
1982
34
222
3K
Thank you for your
#askHKUMed
questions on COVID-19 vaccines for children.
Take a look at Dr Gilbert Chua’s answers 👇🏻
#COVID19
#HKTwitterGetsVaxxed
#vaccinated
#vaccine
15
105
3K
Submit your questions to Prof Keiji Fukuda, a member of the
#HongKong
Government's expert advisory group for
#COVID19
, by tweeting with
#askHKUMed
.
He will be joining
@sree
to discuss policy lessons from Asia on the
#coronavirus
.
Live Q&A: 21:00HKT/09:00NYC - Wed, April15th.
#askHKUMed on COVID-19
17
218
3K
Having questions about masks and other lessons from Asia on the fight against
#COVID19
?
Prof. Yuen Kwok-yung of
@hkumed
will be joining
@sree
to discuss the latest on the novel
#coronavirus
.
Time: 21:00HKT/09:00NYC - Thur, April 2nd.
Submit your question through
#askHKUMed
.
#askHKUMed on COVID-19
7
255
2K
Q: A fatality rate of 1.4% seems very low. Does that mean we may resume our daily routines?
A: Current sCFR estimates from
@hkumed
&
@HarvardChanSPH
of 1.4% may seem low, however with near 100,000 confirmed cases globally, many lives will be affected.
#COVID19
#KnowtheFacts
11
213
2K
Worried about
#COVID19
? How should you protect yourself during this pandemic? What do doctors need to know?
Ask Prof
@gmleunghku
by tweeting
#askHKUMed
.
Live Q&A with Prof
@sree
, Mar17 08:30HKG | Mar 16 20:30NYC
Watch it live at: or here
@hkumed
.
#askHKUMed on COVID-19
11
228
2K
Q: Are CT scans a possible alternative?
A: Yes, but with limitations. Many factors are considered during diagnosis including medical history, testing results, and clinical observations. CT scans alone may not be accurate.
#KnowTheFacts
#COVID19
4
116
2K
Have a question about
#COVID19
vaccine travel passports or global vaccine equity?
Submit them to Dr
@KarenGrepin
of the Division of Health Economics, Policy and Management
@HKU_SPH
, before 15 August by replying with
#askHKUMed
!
#HKTwitterGetsVaxxed
#vaccinated
#askHKUMed on vaccines!
15
91
1K
Thank you for your
#askHKUMed
questions on COVID-19
#VaccineHesitancy
and
#HerdImmunity
.
Take a look at Prof
@bencowling88
's answers 👇🏻
#COVID19
#HKTwitterGetsVaxxed
#vaccinated
#vaccine
15
109
1K
Q: How is Rt reflective of the outbreak?
A: Rt varies depending on the effectiveness of control measures and behavioural changes, such as quarantine enforcement, usage of face masks, travel restrictions, class suspensions, and physical distancing.
#KnowTheFacts
#COVID19
6
66
978
Q: If Rt is below 1, is the outbreak over?
A: While it may be encouraging to see Rt below 1, this does not necessarily mean we can immediately relax current health protocols and precautions.
#KnowTheFacts
#COVID19
2
61
794
Q: What is R₀ and what is Rt?
A: R₀ represents the number of people that one infected person can potentially go on to infect if there are no intervention measures in place; Rt is the average number of secondary cases per one case at any given time.
#KnowTheFacts
#COVID19
2
72
765
A team from
@HKUMed
studied how
#SarsCoV2
infects and multiplies in human lung tissues. The study compared the virus with SARS-CoV, the
#coronavirus
responsible for the 2003 SARS outbreak, on how they attacked human lung tissue.
#COVID19
7
250
763
Thank you for your
#askHKUMed
questions on COVID-19
#VaccineTravelPassports
Take a look at Dr
@KarenGrepin
’s answers 👇🏻
#COVID19
#HKTwitterGetsVaxxed
#vaccinated
#vaccine
7
18
484
Thank you for your
#askHKUMed
questions on COVID-19
#VaccineTravelPassports
.
Take a look at Dr
@KarenGrepin
’s answers 👇🏻
#COVID19
#HKTwitterGetsVaxxed
#vaccinated
#vaccine
2
24
471
Question: How can we effectively clean our phones and accessories?
Answer:
➩ Clean your handbag with a piece of wet cloth
➩ Wash your glasses with soap and water
➩ Clean your phone with hand sanitiser
#knowthefacts
#COVID19
9
345
436
@hkumed
Microbiology found the world's first documented
#COVID19
reinfection case.
This suggests that "immunity can be short-lasting after natural infection" & "
#SARSCoV2
may persist in the global human population" like common-cold related
#coronaviruses
.
20
443
410
Do you have a question about
#COVID19
vaccines?💉
Select a topic for Prof
@bencowling88
, head of epidemiology and biostatistics at
@HKU_SPH
, for the latest
#askHKUMed
👇🏻
#HKTwitterGetsVaxxed
#vaccinated
Vaccine hesitancy
1629
Herd immunity in HK
1421
Rules for vaccinated
1189
Vaccines vs distancing
1330
27
39
359
Q: How is fatality rate calculated?
A: There are 3 distinct definitions of fatality risk: IFS, sCFR, & HFR.
They differ in the denominational factors i.e. number of actual infections, infected and symptomatic cases, and hospitalized cases respectively.
#COVID19
#KnowtheFacts
17
193
289
“We will restart the Rt estimation if or when local cases reappear in Hong Kong,” said Prof
@bencowling88
. By
@maryhui
.
#COVID19
#HongKong
4
83
223
A survey by
@hkumed
shows attitudes in
#HongKong
towards preventive measures against
#COVID19
are beginning to relax. It is important to continue observing social distancing during this fight against the
#coronavirus
.
4
107
190
Do you have a question about
#COVID19
vaccines?
Select a topic for Dr
@KarenGrepin
, of the Division of Health Economics, Policy and Management at
@HKU_SPH
, for the latest
#askHKUMed
💬
#HKTwitterGetsVaxxed
#vaccinated
Vaccine travel passports
1186
Vaccine access
556
Global vaccine equity
826
34
28
159
“I think relatively little Covid-19 transmission would occur outdoors, except perhaps in large crowds,” says Prof
@bencowling88
and the senior author of a study published in
@nature
this month that looked at breathing, viral shedding and masks.
#COVID19
7
61
125
Prof Yuen Kwok-yung and Prof Malik Peiris from
@hkumed
have been awarded this year's Future Science Prize in Life Sciences, for making significant contributions in the research of emerging infectious diseases.
For more:
#HKUMedResearch
7
39
124
As such, these animals should be removed from wet markets to prevent the risk of animal-to-human transmission.
For more on the study from Dr. Tommy Lam of
@hkumed
, and others. 4/
4
51
114
✅ How does the
#coronavirus
spread?
✅ Source Control vs. Protection: What is the difference when it comes to face masks?
✅ Can you tell us about your research on masks as an effective source control?
Prof
@bencowling88
of
@hkumed
answers your questions on face masks.
#COVID19
1
39
114
They studied this by extracting the genes of coronaviruses isolated in pangolins, seized from anti-smuggling operations, and discovered that up to 92% of these genes were similar to those in human 2019 coronavirus (
#SARS_COV_2
). 2/
2
42
100
This study concluded that pangolins were identified carriers of a coronavirus that was highly related to the human
#SARS_COV_2
; bringing us closer towards identifying the virus’s source. 3/
4
34
96
Prof Malik Peiris from
@HKU_SPH
and Prof John Nicholls from the Department of Pathology have released an electron microscope image of the SARS-CoV-2 Omicron variant.
#COVID19
#OmicronVariant
For more:
6
36
98
#askHKUMed
Live with Prof Yuen Kwok-yung & Prof
@sree
(
@stonybrooku
/
@sbujournalism
) discussing masks and other mitigation tools for
#COVID19
11
83
95
To prevent the spread of
#COVID19
, it is important to follow physical distancing measures.
@WHO
recommends maintaining "at least 1 metre (3 feet) distance between yourself and anyone who is coughing or sneezing."
#knowthefacts
4
44
91
"
#SARSCoV2
is relatively stable genetically, so very few
#mutations
. Also, the key protective target in the virus spike, to which a neutralising antibody is directed, does not have much ability to mutate," said Prof Malik Peiris.
#COVID19
4
35
88
"I think that
#COVID19
is going to be a real test of the global resolve to make sure the pandemic does not turn out to become one of the greatest health inequities of our century," said Prof
@gmleunghku
during his appearance on
@NHKWORLD_News
.
1
32
86
Such data can guide study on antiviral treatment, vaccine, control measures, etc.
Temporal profiles of viral load in posterior oropharyngeal saliva samples and serum antibody responses during infection by
#SARSCoV2
: an observational cohort study (4/4)
2
37
80
Latest by Prof Leo Poon & Prof Malik Peiris et al shows "the mean viral load of severe cases was around 60 times higher than that of mild cases, suggesting that higher viral loads might be associated with severe clinical outcomes"
#COVID19
@TheLancetInfDis
2
53
79
“I think the exact distance to maintain is less important, it would be more important to avoid prolonged close contact with other people in crowded areas,” said
@bencowling88
, Professor in Infectious Disease Epidemiology at the
@hkumed
.
#COVID19
1
43
72
Are you thinking about a PhD?
Learn about our academics, scholarships and facilities to find out why you should take that step with HKUMed.
Get the latest pamphlet:
Learn more about our research postgraduate programmes:
0
11
76
Q: Can we sanitise and reuse masks to expand its lifespan?
A: We cannot sanitise and reuse masks. If you want to extend its lifespan, cut a piece of gauze and line the inner part to prevent direct contact of the mask to your mouth and nose.
#knowthefacts
#COVID19
#coronavirus
1
60
69
“I think the average person, if they were taught how to wear a mask properly … would have some protection against infection in the community.” says Prof
@bencowling88
.
#COVID19
2
43
72
As many people in the general population are not familiar with what viruses are and what they look like,
@HKUniversity
has released a short video on the new
#novelCoronavirus
growing in culture.
#nCoV2019
#coronavirus
2
65
64
"We shouldn't say that 'masks aren't perfect, therefore they're no use' because actually imperfect masks can still do a lot of good in public health," says Prof
@bencowling88
. Story by
@Elana_Gordon
in
@TheWorld
.
#COVID19
|
@HKU_SPH
0
28
68
Wondering how the coronavirus can transmit from one person to another?
Prof
@bencowling88
explains how a sick person can infect other people or contaminate the environment with the virus in this video.
#COVID19
1
29
67
"I am most pleased, and proud yet humbled, to report to you that HKUMed has just been ranked amongst the top 20 medical schools in the world," says Dean Prof
@gmleunghku
, following the latest
@timeshighered
World University Rankings.
For more:
1
27
67