| | The United States on Monday crossed the grim milestone of 600,000 COVID-19 deaths, according to a Reuters tally, as slowing vaccination rates threaten the Biden administration target of having 70% of U.S. adults receive at least one shot and 160 million fully inoculated by July 4. | | | Italians under the age of 60 who received a first dose of the AstraZeneca (AZN.L) COVID-19 vaccine, known as Vaxzevria, can be given a different vaccine when they get their second dose, Italy's medicine agency AIFA said on Monday. | | | The Delta coronavirus variant doubles the risk of hospitalisation compared with the previously dominant variant in Britain, but two doses of vaccine still provide strong protection, a Scottish study found on Monday. | | | The following is a roundup of some of the latest scientific studies on the novel coronavirus and efforts to find treatments and vaccines for COVID-19, the illness caused by the virus. | | | Novavax Inc (NVAX.O) on Monday said its COVID-19 vaccine was more than 90% effective, including against a variety of concerning variants of the coronavirus in a large, late-stage U.S.-based clinical trial. | | | Mexico reported 1,175 new confirmed cases of COVID-19 in the country and 39 more fatalities on Monday, bringing total infections to 2,455,351 and the death toll to 230,187, according to health ministry data. | | | The U.S. Centers for Disease Control and Prevention (CDC) said on Monday it will temporarily suspend importation of dogs from 113 countries classified as high risk for dog rabies effective July 14. | | | The United States has administered 310,645,827 doses of COVID-19 vaccines in the country as of Monday morning, the U.S. Centers for Disease Control and Prevention said. | | | COVID-19 vaccines made by Pfizer (PFE.N) and AstraZeneca (AZN.L) offer high protection of more than 90% against hospitalisation from the Delta coronavirus variant, a new analysis by Public Health England (PHE) showed on Monday. | | | Africa will get priority treatment for the Group of Seven's pledged 870 million doses of COVID-19 vaccine, a senior World Health Organization adviser said on Monday. | | | | |