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Dr. Benjamin Chan speaks at Tuesday's news conference in Concord with Gov. Chris Sununu behind him. (PAULA TRACY PHOTO)

CONCORD — An investigation has begun into ventilation systems at long-term care facilities that have suffered outbreaks of COVID-19, officials said at Gov. Chris Sununu’s news conference Tuesday.

Lori Shibinette, the state director of the Department of Health and Human Services, said as concerns for possible spread of COVID-19 through the air increase, the state hopes to look at whether there are similarities in the HVAC systems at the long-term care facilities which have had more than three cases of the coronavirus constituting an “outbreak.”

The two-week study began on Monday and it may lead to suggestions for changing those HVAC systems and others, she said.

If so, there could be federal funds spent to help fix the problems, Shibinette said.

There have been 28 long term-care facilities that have suffered more than three cases of the coronavirus and currently there are four, she said. All of their HVAC systems will be analyzed.

She announced that the state has closed out a “significant” outbreak at the Hillsborough County Nursing Home but added a new facility in Bedford to the list, Ridgewood Genesis with nine people including seven staff testing positive.

The state’s epidemiologist, Dr. Benjamin Chan, said the nation continues to experience a surge of the virus, overall with approximately 1 million new infections reported every couple of weeks.

While New Hampshire and New England have not seen the large surges, he conceded that the state’s numbers continue to creep up. “Our numbers have increased a small amount and we are watching this carefully,” Chan said.

On Tuesday, he announced 59 new people testing positive for COVID-19 totaling 6,500 since the beginning of the outbreak.

One new hospitalization was reported for a total of 690 cases and there were no new deaths to report Tuesday.

However, 409 people have died in New Hampshire from the respiratory virus, a majority of which were elderly who lived in long-term care facilities.

A majority of the cases and the outbreaks have occurred in the southern part of the state with more than 70 percent in Hillsborough and Rockingham counties. But the state is still seeing a low overall positivity rate among those being tested, remaining at between 1 and 1.5 percent of the overall number of tested.

Another factor, hospitalizations remain stable and low and we are not reaching surge capacity, Chan said.

Contact tracing is one tool used to interrupt transmission, but Chan asked everyone to do their part by washing their hands frequently, staying 6 feet from people in public and wearing cloth face coverings and “we need people to stay at home if they are sick and get tested,” Chan said.

HVAC Systems

Shibinette said there are emergent signs to suggest the virus could be airborne for some time and that respiratory droplets could travel through the air farther and longer than first thought.

“We are trying to stay ahead of these issues,” Shibinette said. A great tool to mitigate those risks going forward is to better understand ventilation systems — or HVAC — and the part they may or may not play.

Shibinette said they will take the information learned from HVAC systems in long-term care facilities where there have been outbreaks and apply it to other facilities. She did not indicate whether that information might also be used in schools, which will open soon.

“Our knowledge of the virus has just evolved,” Shibinette said when asked why this was not done earlier. She noted the surprise to find asymptomatic transmission spread earlier in these facilities. That led to more testing of staff and residents which is ongoing.

In the past few weeks, she said, there has been probably more discussion about how long droplets are suspended in the air.

Surface transmission is not as big an issue now as it was first considered, she noted.

“In some facilities, we saw some high attack rates,” Shibinette said. “We don’t know what is contributing to COVID-19 within these facilities so we are looking at anything we can,” she said. “We are leaving no stone unturned.”

Hillsborough County Nursing home saw 158 residents in its 300-bed facility test positive to COVID-19 on June 14 and 21 died.

In March, two residents tested positive and within two days, the number of residents testing positive soared to 34.

On Tuesday, Hillsborough County Nursing Home was taken off the list of outbreaks in cases having gone at least 14 days without a new case.

Sununu said the overall number of cases in the state are going up and down with every passing day, noting that on Monday, there were only 7 cases reported and 59 on Tuesday.

Part of that has to do with batches of cases being reported at the same time along with sentinel testing. He told the public not to be concerned or too relieved from day to day.

“We are doing a deep dive on our numbers,” Sununu said, noting that the new cases are averaging about 30 a day, “I think over time we will see waves and troughs.”

He noted that there are about 650 active cases in the state but they are concentrated in about 17 or 18 communities. He said in the entire state, few communities have more than five cases.

Mask and vaccine

It is not anticipated there would be any mandatory vaccine required in the state once one becomes available, Sununu said, and he again said no to a statewide mandatory mask order.

Sununu said the number of people wearing masks in the past two weeks has skyrocketed and a number of businesses have begun to require them. He gave examples of states with mandatory mask ordinances that are still seeing increased cases including California, Washington and Oregon.

“It is not an end-all, be-all,” Sununu said, and he noted it is not enforceable.

He also said he thinks people are not washing their hands as much as they used to and during the press conference, he challenged the public to wash their hands at least four times before they go to bed on Tuesday.

Veteran support

A recent study by the Woodruff Foundation on the impact of the pandemic on veterans included reports of isolation and bad outcomes for those with preexisting conditions.

About $7 million was announced last month to help with veteran homelessness, mental health support, and Tuesday, the state was opening up the application process for the organizations that support veterans, allowing for $3 million to become available for employment support, transportation and other programs often offered by Legions and VFW Posts.

The application process will run through Aug. 10 and details are at goferr.nh.gov.

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(1) comment

JJRossate

Cleaning the air inside has been my HVAC related investigations for the past 30 years. I always check the console units in my hotel room and will find that they have either pulled the filter or the filter is blocked with clutter. The very small number of hotels that actually change their filters are always complimented by me. When I do a long term rental I immediately change the filter and date it with marker. I found that my 2019 filter change had not been touched one year later-I selected another long term rental for 2021. Use UV generators and activated charcoal filters, run your air constantly and condition the air. Those dont buy you 100% safety but they are the easy first steps.

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