<p>Australia's most populous state, New South Wales (NSW), on Tuesday reported its biggest increase in new locally acquired Covid-19 cases in nearly a week, raising prospects of more tough restrictions in the country's largest city, Sydney.</p>.<p>Ten new locally acquired cases were reported in NSW on Tuesday, as officials fight to contain latest cluster of the highly infectious Delta virus variant.</p>.<p>Tuesday's data includes seven cases recorded after the 8 p.m. cut-off deadline, which will be included in Wednesday's numbers. Six of the seven infections are household contacts of previous cases who have been in isolation.</p>.<p><strong><a href="https://www.deccanherald.com/science-and-environment/dual-antibody-drugs-effective-against-covid-19-variants-in-animal-study-999998.html" target="_blank">Read | Dual-antibody drugs effective against Covid-19 variants in animal study</a></strong></p>.<p>Authorities linked a driver who transports overseas airline crew members to the latest outbreak, the first in the state in more than a month, which has swelled to 21 infections in six days.</p>.<p>In its efforts to quash the outbreak, the NSW government made masks mandatory in Sydney's buses, trains and ferries for five days while urging the city's 5 million residents to use masks indoors.</p>.<p>Swift tracing systems, tough social distancing rules and a high community compliance have kept Australia's Covid-19 numbers relatively low, with just over 30,350 cases and 910 deaths. It has reported zero local cases for most days this year.</p>
<p>Australia's most populous state, New South Wales (NSW), on Tuesday reported its biggest increase in new locally acquired Covid-19 cases in nearly a week, raising prospects of more tough restrictions in the country's largest city, Sydney.</p>.<p>Ten new locally acquired cases were reported in NSW on Tuesday, as officials fight to contain latest cluster of the highly infectious Delta virus variant.</p>.<p>Tuesday's data includes seven cases recorded after the 8 p.m. cut-off deadline, which will be included in Wednesday's numbers. Six of the seven infections are household contacts of previous cases who have been in isolation.</p>.<p><strong><a href="https://www.deccanherald.com/science-and-environment/dual-antibody-drugs-effective-against-covid-19-variants-in-animal-study-999998.html" target="_blank">Read | Dual-antibody drugs effective against Covid-19 variants in animal study</a></strong></p>.<p>Authorities linked a driver who transports overseas airline crew members to the latest outbreak, the first in the state in more than a month, which has swelled to 21 infections in six days.</p>.<p>In its efforts to quash the outbreak, the NSW government made masks mandatory in Sydney's buses, trains and ferries for five days while urging the city's 5 million residents to use masks indoors.</p>.<p>Swift tracing systems, tough social distancing rules and a high community compliance have kept Australia's Covid-19 numbers relatively low, with just over 30,350 cases and 910 deaths. It has reported zero local cases for most days this year.</p>