(Bloomberg) -- Hard-hit U.S. states including California and Arizona reported slowing new virus cases. A bipartisan group of governors formed a pact to buy millions of antigen tests, sidestepping the federal government.

New Zealand was warned to brace for the inevitable return of Covid-19. China plans to boost testing capacity in Hong Kong.

Germany, Poland and the Netherlands reported increases in new cases, while Ireland delayed the latest phase of reopening. Richard Branson’s Virgin Atlantic Airways Ltd. filed for Chapter 15 bankruptcy protection in the U.S. to aid in a U.K. rescue deal.

Key Developments

  • Global Tracker: Global cases top 18.3 million; deaths pass 696,000
  • White House, Democrats aim to reach virus aid deal by week’s end
  • NYC’s health commissioner resigns after clash with mayor
  • Novavax shares go on wild swing after early vaccine data
  • Japan’s virus rise erodes support for Prime Minister Abe
  • Virus fears keep shoppers away in consumer-reliant Philippines

Subscribe to a daily update on the virus from Bloomberg’s Prognosis team here. Click CVID on the terminal for global data on coronavirus cases and deaths.

New Zealand Warned to Brace for Virus Return (6:05 a.m. HK)

New Zealand must prepare for another local outbreak of the coronavirus, the Director-General of Health warned.

It’s inevitable that there will be a case of community transmission of Covid-19, Ashley Bloomfield told Radio New Zealand on Wednesday.

“It’s a matter of when, not if,” he said. “We are working on the basis it could be any time, of course coupled with doing everything we can to intercept the virus at the border.”

Novavax Shares Whipsawed After Vaccine Data (5:11 p.m. NY)

Novavax Inc. shares saw huge swings in extended trading as investors took a critical eye to early data on its experimental vaccine for Covid-19 following a 3,800-percent rally in the stock this year.

The shares briefly fell as much as 34% postmarket on Tuesday, before paring the decline. The two-injection regimen when administered concurrently with Novavax’s immune-boosting technology generated antibody responses that were four times higher than those seen in people who had recovered from the disease.

Confusion over the vaccine’s safety data arose after a media report incorrectly said trial participants were hospitalized with severe reactions. The vaccine appeared safe in the more than 100 patients who received it, according to the company. Reactions to the shots were generally mild, lasting two days or less. One patient getting the vaccine had a mild skin infection that was determined not to be related to the shot.

Texas Positivity Rate Increases (5:05 p.m. NY)

Texas’s positivity rate climbed for a third straight day, reaching 13.88%, the highest since July 22, according to state health department data. The figure was still down from the July 16 peak of 17.43%.

The Lone Star state also detected 9,167 new cases, bringing the total to date to 451,181. More than 7,000 Texans have succumbed to the virus since the outbreak began, but monitoring fatalities on a daily basis has become difficult because the state changed the way it tracks and discloses deaths last month.

In Houston, the fourth-biggest US city, Covid-19 hospitalizations declined for a 14th consecutive day, according to the Texas Medical Center.

Governors From Bipartisan Pact to Buy Tests (4:30 p.m. NY)

A bipartisan group of governors led by Maryland’s Larry Hogan has formed a pact with the Rockefeller Foundation to buy millions of coronavirus antigen tests, the most significant example so far of states teaming up to fight the pandemic rather than working through the federal government.

The group includes Louisiana, Maryland, Massachusetts, Michigan, Ohio and Virginia, and the states are already in discussions with test manufacturers Becton Dickinson and Quidel. The tests, which search for proteins on the surface of the virus, can deliver results in 15 to 20 minutes.

U.S. Cases Rise 1.1% (4 p.m. NY)

Coronavirus cases in the U.S. increased 1.1%, as compared with the same time Monday, to 4.74 million, according to data collected by Johns Hopkins University and Bloomberg News. The increase was lower than the average 1.4% daily gain over the past week. Deaths rose 0.7% to 156,133.

  • Arizona reported 1,008 new cases, a drop from the day before and the lowest since late June. Total cases grew by 0.6%, less than the seven-day average of 1.2%.
  • Florida’s cases rose 1.1% from a day earlier to 497,330, compared with an average increase of 1.8% in the previous seven days. Deaths reached 7,402, an increase of 245, or 3.4%
  • Hawaii experienced a 9.2% increase in the number of cases from the same time yesterday, bringing the total to 2,448, according to the data from Johns Hopkins and Bloomberg News.

California Has Fewest New Cases Since June (2:39 p.m. NY)

California reported 4,526 new cases, its lowest daily tally since June and well below the 14-day average of 8,476 infections, according to state health data. There were 113 added deaths, compared with the two-week daily average of 125. That brings the total to 9,501.

There were other signs of improvement, as hospitalizations fell 1.5% and the 14-day average test positivity rate declined to 6.7% from 7.5% last week.

Still, the picture may not complete. The state posted a disclaimer on its website saying that cases may be underreported due to issues with its laboratory reporting system.

Ireland Delays Opening Pubs (2:05 p.m. NY)

Ireland delayed the latest phase of its reopening. Bars that don’t serve food, which had been due to reopen August 10, must remain closed until at least the end of the month. Indoor gatherings will be limited to 50 people, and outdoor events to 200.

Masks will be made mandatory in stores and malls, while the government removed five countries including Malta and Cyprus from its list of countries safe to travel to.

Arizona Cases Fall (1:10 p.m. NY)

Arizona reported 1,008 new cases on Tuesday, a drop from the day before and the lowest since late June. Total cases grew by 0.6%, less than the seven-day average of 1.2%. The state Department of Health Services also reported 66 new deaths, for a total of 3,845.

The positivity rate statewide was 14.8%, a slight increase from the 12.9% reported on Monday. In Maricopa County, the state’s most populous, health officials reported 16.3% positive tests, above the 14.3% positivity rate reported the previous day.

NYC Health Commissioner Quits (12:28 p.m. NY)

Oxiris Barbot, head of the city’s Department of Health and Mental Hygiene, resigned following months of disagreements with Mayor Bill de Blasio over the city’s virus policies. Dave Chokshi will be the new commissioner, the mayor said in a news release.

Barbot and the mayor clashed over the role of the health department in combating the virus, with de Blasio’s decision to put the public hospital system in charge of testing and contract tracing a major flashpoint.

Bavarian Gherkin Plant Sees Rise (11:26 a.m. NY)

The number of workers testing positive at a plant in southern Bavaria that processes pickled gherkins and other vegetables has risen to 166, or about a quarter of the workforce, according to the local municipality.

The rise comes as Germany has seen an uptick in new coronavirus cases in recent weeks following the relaxation of lockdown restrictions.

Rhode Island Joins Quarantine List (10:55 a.m. NY)

Rhode Island has been added to the 14-day quarantine list for New York and New Jersey, while Delaware and Washington, D.C., have been removed.

There are 35 states and territories on the list. States listed have a test rate higher than 10 per 100,000 residents or a 10% or higher positivity rate over a 7-day rolling average.

“Individuals traveling from these states must remain vigilant by proactively getting a Covid-19 test and self-quarantining to prevent additional Covid-19 transmission from spreading throughout New Jersey,” New Jersey Governor Phil Murphy said in a statement.

Florida Cases Slow as Storm Curbs Tests (10:32 a.m. N.Y.)

Florida reported 497,330 Covid-19 cases on Tuesday, up 1.1% from a day earlier, compared with an average increase of 1.8% in the previous seven days. Deaths among Florida residents reached 7,402, an increase of 245, or 3.4%, according to the report, which includes data through Monday.

The new rate of people testing positive for the first time, though, rose to 10.9% for Monday, from 9.1% on Sunday.

State-run testing sites were closed for several days in anticipation of Hurricane Isaias.

Dutch Cases Almost Double in Last Week (8:30 a.m. NY)

Cases rose at a faster pace last week in the Netherlands compared with the seven days prior, the RIVM Dutch National Institute for Public Health and the Environment said on Tuesday. In the week ending Aug. 4, 2,588 new cases were confirmed, up almost double from 1,329 the week prior.

Fatalities have risen at a slower pace, rising to 6,169 Tuesday morning from 6,164 a week earlier, according to data collected by Johns Hopkins University and Bloomberg News.

On Thursday, Prime Minister Mark Rutte and Health Minister Hugo de Jonge will hold a news conference and announce, if necessary, “additional, regional support measures,” according to RVD, the Dutch government information service.

©2020 Bloomberg L.P.