A couple of factors are at play, starting with the emergence of the highly contagious omicron variant. Omicron is more likely to infect people, even if it doesn’t make them very sick, and its surge coincided with the holiday travel season in many places.

People might mistakenly think the COVID-19 vaccines will completely block infection, but the shots are mainly designed to prevent severe illness, says Louis Mansky, a virus researcher at the University of Minnesota.

Also read: BJP leader Manoj Tiwari tests positive for COVID-19, cancels poll rally in Uttarakhand

And the vaccines are still doing their job on that front, particularly for people who’ve gotten boosters.

Two doses of the Pfizer-BioNTech or Moderna vaccines or one dose of the Johnson & Johnson vaccine still offer strong protection against serious illness from omicron. While those initial doses aren’t very good at blocking omicron infection, boosters — particularly with the Pfizer and Moderna vaccines — rev up levels of the antibodies to help fend off infection.

Also read: Amid spread of COVID-19, offline ticket counters of Taj Mahal, Agra Fort closed

Omicron appears to replicate much more efficiently than previous variants. And if infected people have high virus loads, there’s a greater likelihood they’ll pass it on to others, especially the unvaccinated. Vaccinated people who get the virus are more likely to have mild symptoms, if any, since the shots trigger multiple defenses in your immune system, making it much more difficult for omicron to slip past them all.

Advice for staying safe hasn’t changed. Doctors say to wear masks indoors, avoid crowds and get vaccinated and boosted. Even though the shots won’t always keep you from catching the virus, they’ll make it much more likely you stay alive and out of the hospital.

Also read: NBA reschedules postponed games, makes other adjustments

How can I protect myself from the new omicron variant?

The same way you guard against COVID-19 caused by any other variant: Get vaccinated if you haven’t yet, get a booster if you’re eligible and step up other precautions you may have relaxed, like wearing a mask and avoiding crowds.

For all the attention omicron is getting, the overwhelming cause of infections and deaths in many places remains the extra-contagious delta variant.

Also read: Arvind Kejriwal’s health history: Delhi CM tests positive for COVID-19

Can your pet get COVID-19?

Yes, pets and other animals can get the coronavirus that causes COVID-19, but health officials say the risk of them spreading it to people is low.

Dogs, cats, ferrets, rabbits, otters, hyenas and white-tailed deer are among the animals that have tested positive, in most cases after contracting it from infected people.

Also read: What is ‘Florona’ disease? The first influenza virus that reported in Israeli woman

While you don’t have to worry much about getting COVID-19 from your pets, they should worry about getting it from you. People with confirmed or suspected COVID-19 should avoid contact with pets, farm animals and wildlife, as well as with other people, according to the U.S. Centers for Disease Control and Prevention.