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Some crochet patterns have a way of catching your eye, and the Virus Blanket is definitely one of them. With its flowing curves, delicate loops, and beautiful repeating texture, this blanket grows into a lovely design that looks far more complicated than it really is.
Despite its unusual name, the Virus Blanket has nothing to do with illness. The name refers to the way the pattern spreads outward in repeating, spiral-like sections. As each round is added, the blanket develops more texture and detail, creating a design that is both eye-catching and satisfying to crochet.
The pattern became especially popular among crocheters through online crafting communities and social media. Many people fell in love with its unusual appearance and the way a few basic stitches can come together to create such an intricate-looking fabric.
One of the best things about the Virus Blanket is that you don’t need a huge collection of advanced crochet skills to get started. Once you understand how the chain spaces, double crochet stitches, and repeating sections work together, the pattern becomes easier to follow.
You can make it in a single color for a classic look or experiment with several shades to highlight the pattern’s curves and texture. Whether you’re making a cozy blanket for your home or creating a handmade gift for someone special, this design is a wonderful project to try.
Materials You’ll Need
Before you begin, gather the following supplies:
- Yarn in your preferred color and weight.
- A crochet hook suitable for your chosen yarn.
- Scissors.
- A yarn needle for weaving in the ends.
- Stitch markers, if you find them helpful for keeping track of the corners.
The amount of yarn and the hook size will depend on your preferred blanket size and the yarn you choose. Check your yarn label for a recommended hook size, and make a small sample if you want to check the finished texture.
Crochet Abbreviations
This pattern uses US crochet terminology.
- Ch: Chain
- DC: Double crochet
- SC: Single crochet
- SL ST: Slip stitch
- St(s): Stitch(es)
- Ch-sp: Chain space
- *: Repeat the instructions as indicated
Important Pattern Notes
Read these notes before starting, as they will help you keep track of the pattern as your blanket grows.
- The beginning chain-3 counts as the first double crochet throughout the pattern, unless otherwise stated.
- The first corner is completed at the end of each designated row.
- The chain spaces create the loops that give the blanket its distinctive appearance.
- The larger chain-5 loops form the corners and help the blanket grow outward.
- The smaller chain-3 loops fill the spaces between the corners.
- Keep your tension consistent so the blanket lies flat as it gets larger.
A helpful tip: Place a stitch marker at each corner if you’re having trouble identifying where one section ends and the next begins.
How to Crochet the Virus Blanket
Getting Started: Make the Center Ring
Make a slip knot, leaving a tail approximately 2–3 inches long for weaving in later.
Chain 6, then join with a slip stitch to the first chain to form a ring.
Make sure the ring isn’t too tight. You’ll be working several stitches into this center space, so leave enough room for them to fit comfortably.
Row 1: Work the Center
Chain 3. This counts as your first double crochet.
Work 19 double crochet stitches into the center ring.
Join with a slip stitch to the top of the beginning chain-3.
Stitch count: 20 double crochet stitches.
Row 2: Increase Around the Ring
Chain 3, then work a double crochet into the same stitch as the joining slip stitch.
Work 2 double crochet stitches into each stitch around.
Join with a slip stitch to the top of the beginning chain-3.
Stitch count: 40 double crochet stitches.
Row 3: Create the First Chain Spaces
Chain 4. This counts as 1 double crochet and 1 chain.
Work 1 double crochet into the next stitch, then chain 1.
Repeat the sequence of 1 double crochet and 1 chain around the row.
Join as appropriate to complete the round.
Stitch count: 40 double crochet stitches and 40 chain-1 spaces.
Row 4: Form the First Loops
This row introduces the chain spaces that give the Virus Blanket its characteristic look. Take your time, especially when working around the corners.
Begin with a chain-5 loop, then make three smaller chain-3 loops. Continue with two larger chain-5 loops, followed by three smaller chain-3 loops. Repeat this arrangement around the blanket.
To create the loops, work as follows:
- Chain 5 and make a single crochet into the second chain-1 space.
- Chain 3, skip the next chain-1 space, and make a single crochet into the following chain-1 space.
- Repeat the chain-3 loop twice more, making three small loops in total.
- Chain 5, skip the next chain-1 space, and make a single crochet into the following chain-1 space.
- Chain 5 again, skip the next chain-1 space, and make a single crochet into the following chain-1 space.
- Work three more chain-3 loops in the same manner as before.
Continue around the remaining sections, following the same arrangement of larger and smaller loops.
At the end of the round, work a single crochet into the same space as the first chain-5 loop. Slip stitch into the first large loop to complete the round.
Pattern tip: Keep the larger loops positioned at the corners. They provide the space needed for the next row of double crochet stitches.
Row 5: Fill the Large Loops
Chain 3. This counts as your first double crochet.
Work 9 double crochet stitches into the first chain-5 loop.
Make a single crochet into the next chain-3 loop, chain 3, and make a single crochet into the following chain-3 loop. Chain 3 again and make a single crochet into the next chain-3 loop.
Work 10 double crochet stitches into the next chain-5 loop.
Continue around the blanket, repeating the same arrangement of double crochet stitches and small loops.
At each corner, work 10 double crochet stitches into each of the two adjoining chain-5 loops, giving you 20 double crochet stitches across the corner section.
Complete the round and join with a slip stitch.
Row 6: Work the Next Double Crochet Row
Chain 3, then work 1 double crochet into each of the next 9 double crochet stitches.
Make a single crochet into the next chain-3 loop, chain 3, and make a single crochet into the following chain-3 loop.
Work 1 double crochet into each of the next 20 double crochet stitches.
Make a single crochet into the next chain-3 loop, chain 3, and make a single crochet into the following chain-3 loop.
Repeat this arrangement around the blanket, keeping the corner sections aligned with the previous row.
At the end of the round, work 1 double crochet into each of the next 10 double crochet stitches and join with a slip stitch to the top of the beginning chain-3.
Row 7: Create the Next Chain-1 Spaces
Chain 4. This counts as 1 double crochet and 1 chain.
Work 1 double crochet into the next stitch, then chain 1. Repeat this sequence until you have completed the first section, which contains 10 double crochet stitches and 9 chain-1 spaces.
When moving past a chain-3 space, skip it without adding an extra chain before or after the skipped space.
Work a double crochet, chain 1, and another double crochet into each of the next 20 double crochet stitches, repeating the same arrangement around the blanket.
For the final corner section, work a double crochet, chain 1, and another double crochet into each of the next 10 double crochet stitches.
Join with a slip stitch to the third chain of the beginning chain-4.
Row 8: Repeat the Loop Pattern
Row 8 follows the same general principle as Row 4, but the blanket now has more stitches and more space between the corners.
Begin with a chain-5 loop, skip the appropriate chain-1 space, and make a single crochet into the next chain-1 space.
Work three small chain-3 loops, making a single crochet into the appropriate chain-1 space after each loop.
Continue with the larger chain-5 loops at the corners, then add the smaller chain-3 loops between them.
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As you move around the blanket, keep the two large loops at each corner and use the smaller loops to fill the spaces between the corner sections.
At the end of Row 8, the expected count for this pattern section is 12 chain-5 spaces and 24 chain-3 spaces.
Take your time with this round. The placement of the loops matters more than speed. If a corner looks uneven, check that the larger loops are in the correct positions before continuing.
Row 9: Repeat the Double Crochet Pattern
Row 9 follows the same general arrangement as Row 5.
Chain 3, then work 9 double crochet stitches into the first chain-5 loop.
Make a single crochet into the next chain-3 loop, chain 3, and make a single crochet into the next chain-3 loop. Repeat this sequence across the three small loops.
Work 10 double crochet stitches into the next chain-5 loop.
Continue around the blanket, repeating the same arrangement between the corners.
At each corner, work 10 double crochet stitches into each of the two adjoining chain-5 loops, for a total of 20 double crochet stitches across the corner section.
Work 10 double crochet stitches into the final chain-5 loop and join with a slip stitch to complete the round.
Row 10: Repeat Row 6
Work Row 10 using the same stitch arrangement as Row 6.
Continue working the double crochet sections and the smaller chain-3 loops, following the established pattern around the blanket.
Pay particular attention to the corners so the increases remain evenly distributed.
Row 11: Repeat Row 7
Work Row 11 using the same stitch arrangement as Row 7.
Create the double crochet and chain-1 sections, skipping the chain-3 spaces as instructed. Keep the corner sections aligned with the larger loops from the previous rows.
Once you finish this round, the repeating pattern should be easier to recognize.
How to Make the Virus Blanket Larger
One of the lovely things about this pattern is that you can continue adding rounds until your blanket reaches the size you want.
Instead of memorizing every row, focus on the four-row repeat. Once you understand how these rows work together, continuing the blanket becomes much more manageable.
The repeating sequence is:
- Loop row: Rows 4, 8, 12, 16, and so on.
- First double crochet row: Rows 5, 9, 13, 17, and so on.
- Second double crochet row: Rows 6, 10, 14, 18, and so on.
- Double crochet, chain-1, double crochet row: Rows 7, 11, 15, 19, and so on.
Continue repeating these four rows until the blanket reaches your desired size.
Remember that the blanket’s final dimensions will depend on your yarn, hook, tension, and the number of rounds you complete.
Tips for a Beautiful Finished Blanket
Keep your tension even. If your chain spaces are too tight, the blanket may curl or become stiff. If they are too loose, the loops may look uneven.
Check the corners regularly. The larger chain-5 loops help establish the blanket’s shape. Make sure they stay in the correct places as you work.
Choose colors that complement the texture. A single shade shows off the stitch pattern beautifully, while alternating colors can highlight the individual sections.
Use stitch markers when needed. Marking the corners can save time and make it easier to identify where each repeat begins.
Don’t rush the loop rows. These rows are the foundation of the Virus Blanket’s distinctive design. A little extra attention here can make the finished blanket look much neater.
Finishing Your Virus Blanket
When your blanket reaches the desired size, finish the last round and fasten off the yarn.
Leave a tail long enough to weave in securely. Thread the tail onto a yarn needle and weave it through several stitches on the wrong side of the blanket. Repeat with any remaining yarn ends.
Lay the blanket flat and check its shape. If the edges need a little adjustment, gently arrange the fabric. Blocking may help even out the stitches, depending on the yarn you used. Always follow the yarn manufacturer’s care instructions before applying heat or moisture.
Once everything is finished, your Virus Blanket is ready to use, display, or give as a handmade gift.
Virus Blanket Crochet Pattern
Frequently Asked Questions
Is the Virus Blanket suitable for beginners?
The pattern uses familiar stitches such as chains, single crochet, and double crochet. However, the placement of the loops and the repeating corner sections can take some practice. Confident beginners may enjoy the challenge, while more experienced crocheters may find the rhythm easier to follow.
Can I use different yarn weights?
Yes. You can experiment with different yarn weights, but the finished size and drape will change. Choose a suitable hook for your yarn and check that the chain spaces remain open and flexible.
Can I crochet the blanket in one color?
Absolutely. A single color creates a beautiful, continuous texture. Multiple colors are also a lovely option if you want to emphasize the repeating sections.
How do I know when to stop?
You can stop once the blanket reaches your preferred dimensions. Since the pattern repeats in four-row sections, it is helpful to finish a complete repeat before fastening off.
Why is my blanket curling?
Curling can happen if your tension is too tight, the chain spaces are too small, or the corner stitches have not been placed correctly. Check the corner arrangement and make sure you are following the row instructions carefully.
Final Thoughts
The Virus Blanket is a rewarding crochet project that turns simple stitches into a wonderfully detailed design. Its repeating loops and expanding sections make it an interesting project to work on, whether you’re making a small lap blanket or a larger throw.
Once you become familiar with the four-row repeat, you can settle into the rhythm of the pattern and watch the design grow round by round. Experiment with your favorite colors, take your time with the corners, and enjoy creating something handmade that you can keep for years or give to someone special.
Have you tried crocheting a Virus Blanket? I’d love to hear which yarn colors you would choose and whether you’d make yours as a cozy throw, a baby blanket, or a special handmade gift.
