Six hundred and nine hundred thousand people in england and wales would told to isolate by the official covert nineteen mobile phone app in the week ending july. Twenty first illustrating the pressure on key industries a staff shortages brought some supply chains close to breaking point contact. Tracing ping's from the national health service app will op eleven percent from six hundred twenty thousand the week before though the rate of increase slowed the number of venue. Check ins recorded by. The app fell to six point. Seven million from ten point four million the legal requirement for hospitality and other businesses to display. Qr check in. Codes was removed on july nineteen but the dramatic decline in the data also suggests some people are choosing to disable or not use. The app of the recent surveys showed a rise in deletions politicians and scientists in the uk. A concern. that people are deleting or at least switching off its tracing function to avoid having to self isolate food logistics companies warned of critical shortages of workers in recent weeks and ministers have allowed limited numbers to avoid the ten day self-isolation to ensure services can keep running the government is also planning to exempt anyone who's fully vaccinated from august sixteen carmakers on thursday urged prime minister boris johnson to make their workers exempt from quarantines a self-isolation rules exacerbated labor shortages that are hampering production but the pressure on industry could soon ease amid a significant fall in covert cases. That is not yet reflected in the app data for england after a two-month surgeon infections driven by the highly transmissible delta variant. The number of people testing positive for corona virus is now declining.