Pakistan logs 371 fresh COVID cases, one death overnight

• Pakistan's COVID-19 positivity rate drops to 2.76%.
• Country reports another coronavirus death.
• Pakistan's COVID-19 case count stands at 1,551,251.

Pakistan logged 371 fresh cases of COVID-19 in the last 24 hours amid a slight countrywide drop in the positivity ratio, the National Institute of Health, Islamabad (NIH) data showed Tuesday morning.

As per the latest stats, the new infections were detected after diagnostic testing on 13,439 samples by the national COVID regulating body. 

After the new additions, Pakistan's COVID-19 case count rose to 1,551,251.

However, the country's coronavirus positivity rate dropped to 2.76% within a single day after touching 3%.

Meanwhile, Pakistan reported another coronavirus death during the last 24 hours, while 184 others were being treated in critical care units.

What is COVID BA.5 variant and why is it reinfecting so many people?

BA5, part of the Omicron family, is the latest coronavirus variant to cause widespread waves of infection globally.

According to the World Health Organisation’s most recent report, it was behind 52% of cases sequenced in late June, up from 37% in one week. In the United States, it is estimated to be causing around 65% of infections.

Rising case numbers

BA5 is not new. First identified in January, it has been tracked by the WHO since April.

It is a sister variant of the Omicron strain that has been dominant worldwide since the end of 2021 and has already caused spikes in case rates – even with reduced testing – in countries including South Africa, where it was first found, as well as the United Kingdom, parts of Europe, and Australia.

Coronavirus cases worldwide have now been rising for four weeks in a row, WHO data showed.

Why is it spreading?

Like its closely related sibling, BA4, BA5 is particularly good at evading the immune protection afforded either by vaccination or prior infection.

For this reason, “BA5 has a growth advantage over the other sublineages of Omicron that are circulating,” Maria Van Kerkhove, the WHO’s technical lead on COVID-19, told a news briefing on Tuesday.

For many people, this means that they are getting re-infected, often even a short time after having COVID-19. Van Kerkhove said the WHO is assessing reports of re-infections.

“We have ample evidence that people who’ve been infected with Omicron are getting infected with BA5. No question about it,” said Gregory Poland, a virologist and vaccine researcher with the Mayo Clinic in Rochester, Minnesota.