Health World News

Thailand: China-made corona virus vaccine faulty filled with “gel lumps”

On Tuesday (June 29), Thailand’s Food and Drug Administration (FDA) warned that it had found 110 doses of the corona vaccine manufactured by Sinovac Biotech group to be faulty. The media outlet Coconuts described the faulty doses of the vaccine as unusable because “gels” got stuck in the vaccine vials.

Sinovac vaccine made in China. (Photo courtesy: Shan_shan/Shutterstock)

Sinovac is the first Chinese company to launch a Chinese coronavirus vaccine, which is made using inactivated cells of the coronavirus itself. It stands apart from leading American vaccines like Pfizer and Moderna, which use unprecedented mRNA technology to trigger an immune response. Other vaccines are being distributed globally, such as the US Johnson & Johnson vaccine and Europe’s AstraZeneca vaccine, which use inactivated cells of a different virus. These two vaccines use the adenovirus that causes the common cold to carry “protein spikes” present on the outside of coronavirus cells.

Initial clinical trials show that Sinovac’s product, commonly known as “Coronavac”, is the least effective vaccine against the coronavirus that is being distributed globally. The results of clinical trials published in January showed that Coronavac was 50.38% effective in preventing corona virus infection, just enough to meet the 50% threshold of the World Health Organization (WHO) to prevent corona virus infection. approved. Since then, Sinovac has repeatedly claimed that its vaccine is nearly 80% effective.

However, the claim was met with heavy criticism after countries that relied mainly on Sinovac’s vaccine, most notably the Seychelles and Chile, experienced a spike in virus infections. corona shortly after these countries “successfully” carried out Sinovac vaccination campaigns.

According to Coconuts, a pan-Asian media outlet that translated Tuesday’s announcement by the Thai FDA, the regulator has determined that a batch of Sinovac vaccine doses, even if shaken well, the vaccine still cannot be properly mixed and cannot be used.

Coconuts reported: “Mr Surachok Tangwiwat of the Thai FDA has directed medical professionals to avoid giving these doses of the vaccine to the public and to report any abnormalities to the agency immediately. According to Mr. Surachok, Sinovac vaccine must be shaken before use. [But] in the case of these [faulty] doses of the vaccine, even if shaken, the gel lumps will not dissolve into the liquid.”

The published notice appears to blame improper handling of the vaccine at some point in the delivery chain between China and Thailand, not Sinovac Biotech’s factory fault. The Coronavac vaccine requires constant refrigeration at temperatures ranging from 35ºF to 46ºF.

“The FDA has required that vaccines be stored at an appropriate temperature. A vaccination site detected [a defective batch of vaccine] containing vaccine solution concentrated as a clear gel in vials of [vaccine], of which 110 vials of vaccine were not administered. vaccination and no other vaccination site has detected such a batch of vaccine.”

The Thai FDA left open the possibility that some of the doses in this defective batch of vaccine may have been administered to the patient. The agency asked healthcare workers to “emphasize” to patients that the vaccine is safe despite the current incident.

Coconuts notes that Thailand has injected more than 10 million doses of Sinovac vaccines since it first received them in February. At the time, Chinese state media announced Sinovac would deliver the first 200,000 doses of the vaccine. The first of 2 million doses promised to Bangkok, and quoted Thai Prime Minister Prayut Chan-o-cha as calling the delivery “historic”.

Thailand’s current military junta, which has close ties to China, continues to use the Chinese vaccine as its main vaccination product even as cases emerge. Reuters called an “unusual stroke-like side effect” in some patients in April.

Similar to the Seychelles and Chile, Thailand began to record a record increase in corona virus infections after vaccination with the Sinovac vaccine, which peaked in May. Thai officials blame the number of infections rising one by one. This is partly due to an outbreak in prisons, where overcrowded accommodation conditions lead to the spread of this contagious disease.

As of Tuesday (June 29), Thailand with nearly 70 million people has recorded 254,515 cases of corona virus infection and 1,970 deaths.

Singapore’s Channel News Asia (CNA) this month noted that although the Thai government has made efforts to convince the public to trust China’s Coronavac vaccine, “the public’s trust in the government is still high.” Prayut’s government is low and people lack confidence in the safety of the vaccines that the government has.” General Prayut came to power in a military coup that was strongly opposed by the country’s youth pro-democracy.

According to CNA, Thai youth “have suspicious and even hostile views [towards the Chinese Communist Party], and Chinese products are viewed by many as cheap and of poor quality.” The Chinese Communist Party did not oppose the 2014 military coup in Thailand, and actively pursued closer ties with Prayut’s military government, through

Thailand’s Ministry of Public Health hosted a study on the effectiveness of Sinovac between April and May as concerns grew about its ability to protect against infection. infection of corona virus. Results released on Tuesday (June 29) show that Coronavac is 91% effective at preventing infection. However, this study only focused on the “alpha” variant (British strain) that causes the disease COVID-19.

The study confirms that two doses of Sinovac vaccine are about 71%-91% effective in reducing infections caused by the Alpha variant. The study subjects were high-risk groups in Phuket, Samut Sakhon and Chiang rai as well as public health workers.”

The study results follow Sinovac chief executive Yin Weidong’s claim in March that the vaccine is “80-90%” effective against infection, although there aren’t any research findings. who supports his claim. However, Mr Yin later questioned his own argument when he advertised that it was likely a third dose of the vaccine would be a solution to concerns about the vaccine’s effectiveness.

“After completing two injections, our body has produced an immune memory,” Mr. Yin asserted in early June. As for when the third dose is needed, let’s give the researchers more time to study it.”

Yin’s comments came after the public lament of Gao Fu, director of the Chinese Center for Disease Control and Prevention (CDC), that the coronavirus vaccines produced by China were Country of manufacture “has a low protection rate”.

Mr. Cao then claimed that media outlets quoted him as causing “misunderstanding.” Cao said in April: “We are now officially considering whether to use different vaccines produced from different technical methods for the vaccination procedure. Everyone should consider the benefits that an mRNA vaccine can bring to humanity. We have to watch it carefully and this vaccine should not be ignored just because we already have some.”

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