efe-epaBy Susana Samhan Washington

All 50 US states have already taken measures to ease their coronavirus quarantine measures, but some of them - including Texas, Maryland and North Carolina - are seeing a resurgence in cases, although doubts exist about how those cases are being counted.

The US is the global center of the pandemic, with 1.5 million confirmed coronavirus cases so far and about 94,000 deaths, according to the ongoing unofficial tally being kept by The Johns Hopkins University.

According to figures from the state health department in Texas, one of the first states to resume economic activities, over the past two days there has been a spike in new coronavirus cases, with 1,219 being detected on Tuesday and 1,411 on Wednesday, compared with figures below 1,000 on the two previous days.