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Coronavirus (Covid-19)

Chinese Covid-19 vaccine reported as just over 50% effective, down from 78%

Maya Taylor

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Chinese Covid-19 vaccine reported as just over 50% effective, down from 78% | The Thaiger
PHOTO: Andressa Anholete/Getty Images
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Confusion reigns over the exact efficacy rate of a Chinese Covid-19 vaccine due to be rolled out in Thailand next month. Thailand has ordered 2 million dosesof the Sinovac Biotech vaccine, while its rollout among high-risk groups in Indonesia is expected to begin this week. However, questions now hang over the vaccine’s efficacy rate, originally reported as 78% in trials in Brazil but more recently downgraded to just over 50%. In total, 4 different efficacy rates have been reported, depending on the country conducting trials.

In Indonesia, where President Joko Widodo is set to get his first dose of the jab today, data from a local trial indicates an efficacy rate of 65%. However, with only 1,620 participants, the trial is considered too small for the data to have much value. Last month, Turkey reported an efficacy rate of 91.25% in its trial, which was also deemed too small to provide meaningful statistics.

The largest trial of the Chinese vaccine has been in Brazil, with 13,000 participants. There, however, 2 quite different efficacy rates have been reported. Just last week, the Butantan Institute, which partnered with Sinovac for the trials, reported that the vaccine was 78% effective in preventing mild cases of the virus and 100% effective in stopping severe and moderate infections.

However, the institute was forced to revise those figures yesterday, confirming instead an overall efficacy rate of 50.38%. The decreased rate comes after researchers came under pressure for a lack of transparency in reporting trial data. Ricardo Palacios from Butantan says the revised figure includes cases categorised as “very mild”, as no medical treatment was required.

It’s understood the Butantan Institute delayed announcing its results 3 times, which they say was due to a confidentiality clause in the contract with Sinovac. The disparity in reporting has raised some questions about the Chinese vaccine, with concerns that it is not receiving the same level of scrutiny as those produced in Europe or the US.

However, it’s not the first time there has been confusion over efficacy rates, with AstraZeneca initially reporting 2 different rates depending on the dosage administered. The Chinese vaccine still meets the efficacy threshold required for regulatory approval, at over 50%.

SOURCE: GMA News | Bloomberg

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11 Comments

11 Comments

  1. Avatar

    EdwardV

    Wednesday, January 13, 2021 at 10:54 am

    “lack of transparency in reporting trial data.“ of a Chinese vaccine, that was a given before the trial even started. Wait so the efficacy threshold required for Thailand is only 51%? Ok I guess ….

  2. Avatar

    Dirk Hunter

    Wednesday, January 13, 2021 at 11:10 am

    Thailand bought 2 million doses from Chinese company and now other countries reporting that same vaccine only 51 percent effective?

    Thailand government would have had better luck ordering online with Shopee, Lazada or Ali-Express.

  3. Avatar

    Slugger

    Wednesday, January 13, 2021 at 11:25 am

    So there’s nothing wrong with the vaccine then. Glad we sorted that out in the end.

  4. Avatar

    Issan John

    Wednesday, January 13, 2021 at 1:03 pm

    Oops … rather worrying not only for Thailand but for the UAE (who reported 86% effectiveness in their trial), Bahrain, Brazil, Chile, Indonesia, Malaysia, Laos, Vietnam, Cambodia and Turkey, plus a few others.

    … could be why China bought 100 million doses from AstraZeneca, though …

  5. Avatar

    James Pate

    Wednesday, January 13, 2021 at 1:09 pm

    Singaporeans are getting the Pfizer vaccine. ?? Wish I was, too.?

  6. Avatar

    John_2

    Wednesday, January 13, 2021 at 6:45 pm

    Seeing as I would hate to deprive a Thai person from the “opportunity” of getting the vaccine – I will happily wait….

    They can keep the monkey virus particles, the sterilization additives, the mercury and the vaccine adjuvants.

  7. Avatar

    Ben

    Thursday, January 14, 2021 at 12:43 am

    Wonder which vaccine Xi is getting? Not the one Thailand bought.

    I’d rather wait for something a little more effective.

  8. Avatar

    harry1

    Thursday, January 14, 2021 at 1:04 pm

    medical chiefs in china declare is was 79% proof,they didnt mention that was for the mildest symptom of this virus,with 50.7% proof for the worst cases.be very reassuring if the government were first to use this vaccine ?

  9. Avatar

    Siso

    Thursday, January 14, 2021 at 3:28 pm

    everybody is so laser focused on the miracle vaccines but those will not solve the massive damage already done and what’s still coming. It will take at least till may when the masses will get vaccinated widespread everywhere and till then most hard lockdowns already in place will stay in place most likely to the end of this year listening to many politicians… what really will f*ck shit up Are all the reports that there are increases in suicides up from 1 to a staggering 145%! Massive increases in domestic abuse, self medication and all the other downsides of the measures in place. There are tens of thousands of mentally sick people that where already walking on the edge before covid and not getting help now and we’re talking about sex offenders, muderers and the rest of them that ain’t getting the needed treatment and that’s in the Netherlands alone that number. On top of that all the businesses closing and most not surviving or coming back, and you can go on and on about all the different problems and issues this has caused and anybody that even thinks for a second that this will just all go away with these miracle vaccines is a moron, everyone knows it will get a lot, and I mean ALOT worse upcoming year at minimum before there will be any improvements noticibly.

  10. Avatar

    Andrew

    Thursday, January 14, 2021 at 7:45 pm

    Is this vaccine made in the same Wuhan laboratory as….?

  11. Avatar

    Joe

    Thursday, January 14, 2021 at 10:40 pm

    The Chinese are making their vaccines the old fashioned way, the same way the west was previously making their flu shots which were also 51% effective, now astro zeneca etc are using a different technology which is a lot more effective, I don’t remember the name.

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Coronavirus (Covid-19)

State Railway of Thailand furloughs 57 locals trains from Tuesday

The Thaiger

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State Railway of Thailand furloughs 57 locals trains from Tuesday | The Thaiger
PHOTO: Baolau

Thailand State Railway governor says that cancellations will affect 13 local services on the northern line, 18 on the northeastern routes, 12 in the southern region and 14 eastern trains.

“Most of the cancelled trains will start at Hua Lamphong station, including trains that are popular with tourists, including services to Kanchanaburi and Hua Hin.”

Niruj Maneepun says the move is to support the Centre for Covid-19 Situation Administration’s effort to curb the virus’ spread by maintaining travel restrictions.

“Already all sightseeing and most long-haul trains have been temporarily cancelled due to Covid-19.”

Thailand has logged 13,500 confirmed infections and 73 deaths since the start of the pandemic in January 2020. The current outbreak that began on December 20, with the epicentre centred around seafood markets in coastal Samut Sakhon, has spread to 63 Thai provinces.

Recently, Bangkok has allowed the reopening of 13 types of businesses as long as they follow strict guidelines surrounding safety measures to prevent the spread of Covid-19.

Businesses allowed to reopen under these measures…

  • Banquet venues, which will need authorisation from BMA for events with over 300 participants
  • Beauty salons, tattoo and piercing shops
  • Fitness centers, but personal trainers and communal steam rooms are not allowed
  • Game Arcades; but all points of contact must be regularly disinfected and facemasks worn at all times.
  • Internet cafés
  • Senior nursing homes, but with limited activities
  • Sports venues, except for boxing rings and race tracks, but no audiences allowed
  • Spas, Thai massage shops, excluding massage parlours
  • Gymnasia and boxing venues for training only
  • Bowling alleys and ice skating rinks, but no competitions or audiences allowed
  • Dancing academies
  • Martial art schools, but no tournaments or audiences allowed
  • Amulet shops and markets

Other provinces in Thailand, such as Chonburi, are waiting for the green light to reopen businesses and travel. Chonburi has reported 0 cases of Covid for 3 days in a row, prompting locals to become frustrated with the strict measures that won’t ease up until at least the end of the month.

SOURCE:Bangkok Post

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Coronavirus (Covid-19)

Thai researcher details her Covid-19 vaccination experience

The Thaiger

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Thai researcher details her Covid-19 vaccination experience | The Thaiger
PHOTO:Aecc Global

“General post-vaccination symptoms include a mild fever, headache, muscle pain and shivering.”

A Thai post-doctorate researcher at the University of Chicago is detailing her Covid-19 vaccination experience and offering insight into its effects. Siriruk Changrob has received 2 doses of the Pfizer-BioNTech vaccine but says just the vaccine won’t immunise people from getting Covid.

Siriruk says a person who is inoculated with the vaccine can still become infected and should continue to practice social distancing and wearing a mask until a herd immunity is developed by 60% of the population, or the virus dissipates. She says she received the first vaccine about 20 days ago and upon arriving for the 2nd dose, a nurse asked her about any side effects and whether she had tested positive for the virus in the past 90 days.

She says she didn’t feel anything until about 8 hours after the 2nd injection, when she started to feel feverish and some pain at the injection site. She noted that all her colleagues warned her that the 2nd injection would give her more painful symptoms.

The Pfizer vaccine requires 2 doses that must be administered at least 21 days apart. But Sriiruk warns that if you can’t get the 2nd injection within the recommended time frame, to hold off from the injection until the time frame can be followed. She also said that anyone who requires daily medication to treat other ailments should consult their doctor before being vaccinated, to ensure that the efficacy of the vaccine will not be affected by that medication.

She says the general post-vaccination symptoms include a “mild fever, headache, muscle pain and shivering”, positive signs that the body is developing an immunity. She warns that taking medication to prevent such symptoms as a fever, is not recommended as the vaccine only protects a person from developing symptoms, rather from being infected by the virus.

SOURCE: Thai PBS World

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Coronavirus (Covid-19)

50,000 to be tested for Covid-19 in Samut Sakhon, 198 new infections reported in Thailand today

The Thaiger

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50,000 to be tested for Covid-19 in Samut Sakhon, 198 new infections reported in Thailand today | The Thaiger

50,000 people are lining up to be tested for Covid-19 in the hotspot of Samut Sakhon over the next 5 days as health officials step up pro-active testing in the hard-hit Thai province. The target of 10,000 people to be tested per day will focus on factory workers, communities and dormitories in an effort to change Krathum Ban and Muang districts from red to yellow and then green zones.

Apisamai Srirangsun, the CCSA deputy spokesperson, says they expect to find 2,000-3,000 new cases as a result of the increased tracking, tracing and testing. She says health officials are trying to track down and free Samut Sakhon of new infections.

“Officials are optimistic that that the pandemic will ease during the 2nd week of February.”

Samut Sakhon is the centre of the 2nd core wave of Covid in Thailand as a cluster of infections broke out late last year in the provincial seafood markets along the coast, just south west of Bangkok. She also said that educational institutes, in some areas of Samut Sakhon, may be allowed to reopen during the next month, if the situation improves.

“But many businesses may have to wait to reopen.”

So far, 70,000 people in the province have been tested for the virus with 5,332 found to be infected. Most of those infected are migrant workers from Myanmar, with the infection rate around 7%.

According to the CCSA, 198 new Covid-19 cases were recorded today, including 191 locally-transmitted infections and 7 imported. 1 more fatality was reported, bringing the national total death toll to 73.

The latest victim was a 73 year old woman from Samut Sakhon, who also suffered from dementia, high blood pressure and epilepsy. She was found to have been infected by family members on January 9 and was admitted to the hospital suffering from fatigue and a severe lung inflammation. The woman was placed on a respirator and was transferred to Thaksin Hospital, but she passed away yesterday after her condition worsened.

SOURCE: Thai PBS World

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