- Bangladesh’s first Zika virus cluster identified in Dhaka.
- Five cases confirmed by the International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b).
- Samples collected in 2023 revealed a strain from the Asian lineage.
- Zika virus can cause severe birth defects and neurological disorders.
- Authorities stress the need for heightened surveillance and preventive measures.
Dhaka, Bangladesh – The International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b) has confirmed the country’s first documented cluster of Zika virus infections. The findings, released on its website today, indicate five cases detected from samples collected in 2023.
The study revealed that all infected individuals were located within a specific area in Dhaka. Notably, none of them had a history of recent international travel, confirming local transmission. This marks a significant development in Bangladesh’s fight against mosquito-borne diseases.
Zika Virus Variant Raises Health Concerns
Researchers confirmed that the detected Zika strain belongs to the Asian lineage. They used whole genome sequencing and comparative analysis to identify it. This variant has been linked to severe conditions like microcephaly. Babies with this birth defect are born with abnormally small heads. Additionally, it can cause other neurological complications, making it an even bigger concern.
Like dengue and chikungunya, Zika spreads mainly through Aedes mosquitoes. However, unlike dengue, it goes undetected in about 80% of cases, which makes it much harder to track and control. On top of that, the virus can also spread through sexual contact. Once inside the body, it may stay for a long time, increasing the risk of further transmission.
Pregnant women face the highest risk if they get infected. Their babies could develop birth defects like microcephaly and other developmental disorders. Because of this, health experts strongly advise them to take extra precautions. Avoiding mosquito bites and practicing safe sex can significantly lower the chances of infection.
Ideal Conditions for Zika Spread in Bangladesh
Bangladesh’s warm and humid climate, coupled with an extended rainy season, creates an ideal breeding ground for Aedes mosquitoes. The country already struggles with frequent outbreaks of mosquito-borne diseases like dengue and chikungunya, and the detection of Zika adds another layer of concern for public health officials.
Given these conditions, experts emphasize the urgent need for heightened vector control measures, improved diagnostic testing, and public awareness campaigns to mitigate the spread of the virus.
History of Zika Virus
Zika virus was first identified in monkeys in Uganda in 1947 and later detected in humans in 1952. Over the years, it has spread across multiple countries. The most severe outbreak occurred in Brazil in 2015-16, where thousands of babies were born with microcephaly due to maternal Zika infections.
Bangladesh previously detected a Zika-positive case in 2016 through retrospective surveillance. The sample, collected in 2014, suggested that the virus may have been circulating undetected in the country for years.
Health Officials Urge Action to Prevent Zika Spread
Health officials are now pushing for stronger surveillance, better diagnostic tools, and public awareness to stop the virus from spreading. To begin with, they advise removing stagnant water to eliminate mosquito breeding grounds. On top of that, they recommend using insect repellents and mosquito nets, especially for pregnant women, since the virus poses serious risks to unborn babies.
At the same time, authorities stress the importance of early testing for anyone experiencing fever, rash, or joint pain. Catching the virus early makes it easier to prevent further transmission. In addition, they are reinforcing sexual health guidelines because the virus can also spread through sexual contact. Meanwhile, public education campaigns will help people stay informed and take necessary precautions.
Recently, Bangladesh detected its first Zika virus cluster, raising fresh concerns about mosquito-borne diseases. As a result, health experts are urging immediate action to prevent future outbreaks. Moving forward, increased surveillance, better public awareness, and strict preventive measures will be critical. For now, officials urge everyone to stay cautious and follow safety guidelines.