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Severity: 8192

Message: Return type of CI_Session_files_driver::open($save_path, $name) should either be compatible with SessionHandlerInterface::open(string $path, string $name): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice

Filename: drivers/Session_files_driver.php

Line Number: 132

Backtrace:

File: /home/ciccom/gnobb.cic.com.bd/application/controllers/Home.php
Line: 9
Function: __construct

File: /home/ciccom/gnobb.cic.com.bd/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Return type of CI_Session_files_driver::close() should either be compatible with SessionHandlerInterface::close(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice

Filename: drivers/Session_files_driver.php

Line Number: 290

Backtrace:

File: /home/ciccom/gnobb.cic.com.bd/application/controllers/Home.php
Line: 9
Function: __construct

File: /home/ciccom/gnobb.cic.com.bd/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Return type of CI_Session_files_driver::read($session_id) should either be compatible with SessionHandlerInterface::read(string $id): string|false, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice

Filename: drivers/Session_files_driver.php

Line Number: 164

Backtrace:

File: /home/ciccom/gnobb.cic.com.bd/application/controllers/Home.php
Line: 9
Function: __construct

File: /home/ciccom/gnobb.cic.com.bd/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Return type of CI_Session_files_driver::write($session_id, $session_data) should either be compatible with SessionHandlerInterface::write(string $id, string $data): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice

Filename: drivers/Session_files_driver.php

Line Number: 233

Backtrace:

File: /home/ciccom/gnobb.cic.com.bd/application/controllers/Home.php
Line: 9
Function: __construct

File: /home/ciccom/gnobb.cic.com.bd/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Return type of CI_Session_files_driver::destroy($session_id) should either be compatible with SessionHandlerInterface::destroy(string $id): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice

Filename: drivers/Session_files_driver.php

Line Number: 313

Backtrace:

File: /home/ciccom/gnobb.cic.com.bd/application/controllers/Home.php
Line: 9
Function: __construct

File: /home/ciccom/gnobb.cic.com.bd/index.php
Line: 315
Function: require_once

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Severity: 8192

Message: Return type of CI_Session_files_driver::gc($maxlifetime) should either be compatible with SessionHandlerInterface::gc(int $max_lifetime): int|false, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice

Filename: drivers/Session_files_driver.php

Line Number: 354

Backtrace:

File: /home/ciccom/gnobb.cic.com.bd/application/controllers/Home.php
Line: 9
Function: __construct

File: /home/ciccom/gnobb.cic.com.bd/index.php
Line: 315
Function: require_once

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Severity: Warning

Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 282

Backtrace:

File: /home/ciccom/gnobb.cic.com.bd/application/controllers/Home.php
Line: 9
Function: __construct

File: /home/ciccom/gnobb.cic.com.bd/index.php
Line: 315
Function: require_once

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Severity: Warning

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Filename: Session/Session.php

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Backtrace:

File: /home/ciccom/gnobb.cic.com.bd/application/controllers/Home.php
Line: 9
Function: __construct

File: /home/ciccom/gnobb.cic.com.bd/index.php
Line: 315
Function: require_once

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Line Number: 304

Backtrace:

File: /home/ciccom/gnobb.cic.com.bd/application/controllers/Home.php
Line: 9
Function: __construct

File: /home/ciccom/gnobb.cic.com.bd/index.php
Line: 315
Function: require_once

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Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 314

Backtrace:

File: /home/ciccom/gnobb.cic.com.bd/application/controllers/Home.php
Line: 9
Function: __construct

File: /home/ciccom/gnobb.cic.com.bd/index.php
Line: 315
Function: require_once

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Filename: Session/Session.php

Line Number: 315

Backtrace:

File: /home/ciccom/gnobb.cic.com.bd/application/controllers/Home.php
Line: 9
Function: __construct

File: /home/ciccom/gnobb.cic.com.bd/index.php
Line: 315
Function: require_once

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Filename: Session/Session.php

Line Number: 316

Backtrace:

File: /home/ciccom/gnobb.cic.com.bd/application/controllers/Home.php
Line: 9
Function: __construct

File: /home/ciccom/gnobb.cic.com.bd/index.php
Line: 315
Function: require_once

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Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 317

Backtrace:

File: /home/ciccom/gnobb.cic.com.bd/application/controllers/Home.php
Line: 9
Function: __construct

File: /home/ciccom/gnobb.cic.com.bd/index.php
Line: 315
Function: require_once

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Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 375

Backtrace:

File: /home/ciccom/gnobb.cic.com.bd/application/controllers/Home.php
Line: 9
Function: __construct

File: /home/ciccom/gnobb.cic.com.bd/index.php
Line: 315
Function: require_once

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Severity: Warning

Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: drivers/Session_files_driver.php

Line Number: 108

Backtrace:

File: /home/ciccom/gnobb.cic.com.bd/application/controllers/Home.php
Line: 9
Function: __construct

File: /home/ciccom/gnobb.cic.com.bd/index.php
Line: 315
Function: require_once

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Severity: Warning

Message: session_set_save_handler(): Session save handler cannot be changed after headers have already been sent

Filename: Session/Session.php

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Backtrace:

File: /home/ciccom/gnobb.cic.com.bd/application/controllers/Home.php
Line: 9
Function: __construct

File: /home/ciccom/gnobb.cic.com.bd/index.php
Line: 315
Function: require_once

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Message: session_start(): Session cannot be started after headers have already been sent

Filename: Session/Session.php

Line Number: 143

Backtrace:

File: /home/ciccom/gnobb.cic.com.bd/application/controllers/Home.php
Line: 9
Function: __construct

File: /home/ciccom/gnobb.cic.com.bd/index.php
Line: 315
Function: require_once

GNOBB - RT-LAMP based inexpensive colorimetric test for Corona virus detection

GLOBAL NETWORK OF BANGLADESHI BIOTECHNOLOGISTS

NEWS

RT-LAMP based inexpensive colorimetric test for Corona virus detection

RT-LAMP based inexpensive colorimetric test for Corona virus detection

GNOBB is very happy to congratulate GNOBB president Dr. Zeba Islam Seraj, Chair, Department of Biochemistry and Molecular Biology, University of Dhaka and her research team for coming up with the small scale optimization and validation of a rapid and inexpensive 40 minute colorimetric test for SARS-COV2 virus detection in Bangladesh.  Using the open source information available in the internet, they demonstrated that this can be a cost effective diagnosis test to cover the need of mass population of Bangladesh. The test is called RT-LAMP and uses Loop-mediated Isothermal Amplification for detection of DNA or RNA. RT-LAMP test is a well-known detection procedure and has been applied in many cases where expensive machineries are not available. Moreover, its simplicity and rapid results makes it suitable as point-of-care test. With an incubator for maintaining constant temperature this can be set in upazila levels where expensive RT-real time PCR based molecular diagnosis lab setup is not available. Moreover at the port of entries this quick test can be used to screen the incoming passengers and isolate asymptomatic carriers. RT-LAMP is a well-known test originally developed by a Japaneese team many years ago. Some countries including China, Israel, Canada and few more have tried this test in laboratory in small scale. They have published their results and made it open source so that other people can optimize the test as per their requirements. For corona positive samples it changes the original pink color to yellow color and negative samples remain as it is.  Kudos to Dr. Zeba I Seraj who has timely used open source information for the feasibility of the RT-LAMP test on a small scale with both RNA and swab samples for COVID19 diagnosis in Bangladesh. They are now on the process of consultation with the government so that a third party government approved laboratory can do a large scale trial to check the feasibility of this test for Bangladesh. 

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