The shortage of pipette suction head caused by the epidemic of COVID-19, power failure in Texas, and fire in production plant continued. Although the dependence of diagnosis test of coronavirus disease in 2019 on the pipette suction head intensifies the shortage, other problems at the top of the supply chain also play a role. Earlier this year, power outages triggered by winter storms in Texas forced ExxonMobil and other companies to temporarily close their plants, some of which make polypropylene resin, the material for pipette tips. Blackouts affect about 85 percent of polypropylene production capacity in the United States.

"We are working 24/7 to meet this increased demand for these products and as well as those used in scientific discovery." a spokesman for MilliporeSigma, a scientific supplies distribution company, said in an email statement.

The medical supply chain is moving at such a snail's speed in the United States and around the world. In some ways, this is due to the lack of a simple piece of equipment. Plastic pipette tips are commonly used in all fields from medical research to Covid-19 testing and blood testing, but in recent weeks, the supply of Plastic Pipette Tips has been in short supply, hindering the development of the whole industry.

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