According to a new report from the Centers for Disease Control and Prevention, the disease was present in New York Wastewater as early as April.
The earliest known detection of the virus was pushed back after a wastewater sample in Orange County, New York, tested positive for it. The virus had been found in the wastewater in Rockland County.
It is believed that this version of the virus has been circulating around the world for a year. In March and June, the same version of the virus was found in Israel and Britain.
The new study gives more information about the ongoing investigation into the case of a young person who became paralyzed from the disease. It was the first report of the disease in the US in three years.
Joseph Eisenberg, an infectious disease epidemiologist at the University of Michigan, said that the findings are unsurprising. He said that it can be circulating a lot and being under the radar.
The Rockland County patient was most likely the beginning of a larger problem.
In some of the county's ZIP codes, the vaccine rates are low.
The patient, who did not have a vaccine against the disease, was hospitalized in June after developing a number of health problems. The patient's stool was tested for the disease and found to be positive.
The patient was found to have a weakened version of the virus that came from the oral vaccine. Since 2000, the oral vaccine has not been used in the US Children in the United States are routinely immunized.
The vaccine is safe and effective, but people who receive it can lose the weakened virus in their stool for weeks, potentially infecting other people. In communities with a lot of unvaccinated people, the virus can keep circulating and get more dangerous.
The discovery of the Rockland case prompted health experts to start testing wastewater samples collected in the region.
The virus was found in 20 wastewater samples in Rockland and Orange counties, and all of them had been genetically linked to the patient sample.
A 21st sample, collected in Orange County in April, tested positive for the virus. There wasn't enough data to link it to the other samples.
According to the new study, 8 percent of the wastewater samples from Rockland and Orange counties were found to have the disease.
There is a lot of community spread under the radar according to John Dennehy.
Wastewater samples from New York City have been found to contain the virus.
The Rockland County patient was most likely exposed to the disease within a few weeks. The patient did not travel abroad but did attend a large gathering.
In Rockland County, the disease was detected in the wastewater 25 days before the patient started to show symptoms.
He is probably not the second case because we saw it in the sewage 25 days prior.
Children who are too young to bevaccinated are at risk of contracting the disease, but people who have received three doses of the vaccine are protected against it.
The national vaccine rate is relatively high. There are pockets of the country, including in New York, where the vaccine rates are lower.
According to the study, only 67 percent of Rockland County children over the age of 24 months had received three doses of the vaccine by July 2020.
The number of shots given was not enough to increase vaccination rates after the Rockland County case.